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Hi All,

Conclusion: Because A had more stricter regulation than B, and river pollution in A is lower than B therefore B should also impement stricter regulations.

We need an option that strengthens the conclusion or has no impact on it.

Option Analysis:

A) From this option we can get that its not about stricter regulation, because there is tech adancement in country A and that produces less waste, that could be the reason for less
river pollution rather than stricter regulations.This weakens our argument.

B) This options provides a different reason for less river pollution in country A , weakening the argument.

C)Same reason as option B

D) This option provides an example that provides indication that the plan of implementing stricter regualtion in country B would also not lead to less river pollution.Therefore weakening our argument

E) From this option we get that the flow of river is at higher rate in country B that in contry A which helps to disperse pollution more effectively. This option neither strengthens nor weakens our argument as it doesnt talk about how implementing stricter regulation like country A would be effective / not effective .And it also doesnt provide any other factor leading to the river pollution differnce in both the countries than stricter regulation. It has No impact on the argument

Therefore E is the answer.
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Bunuel
12 Days of Christmas 2024 - 2025 Competition with $40,000 of Prizes

In Country A, levels of river pollution are significantly lower than in Country B, where there are fewer regulations on industrial waste disposal. It is evident from this comparison that Country B needs to implement stricter waste disposal regulations to improve the cleanliness of its rivers.

Each of the following, if true, weakens the argument above EXCEPT:

(A) Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B.

(B) Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country B.

(C) The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country B.

(D) After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels.

(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A.

 


This question was provided by GMAT Club
for the 12 Days of Christmas Competition

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[E] is the correct answer. The prompt essentially says that due to stricter waste disposal regulations in Country A, the levels of water pollution are significantly lower when compared to Country B which only has a few regulations of industrial waste disposal.

We need to find the answer that doesn't weaken the argument as the question says "except", i.e, there are probably 4 answers that weaken the argument.
(A) This statement weakens that argument as it gives an alternate reasoning, causing there to be less production of industrial waste in Country A.
(B) This statement weakens that argument as it gives an alternate reasoning stating natural causes for there to be less water pollution in Country A.
(C) This statement weakens that argument as it gives an alternate reasoning stating expensive water purification technologies in Country A.
(D) This statement also weakens the argument as it mentions a Country (similar to Country B) has tried adoption regulations and failed to see any improvements indicating that even if Country B tried doing the same, it'll fail.
(E) This is the correct answer. This statement gives an alternate cause for the dispersal of pollutants which seems to be the main issue.
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On analyzing each & every option below-

(A) Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B- This is a weakener as it gives us an alternative reason for why Country A is more well disposed than Country B to deal with the waste disposal in rivers. We can eliminate this option

(B) Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country B-This is another weakener as it gives us an alternative reason for why Country A is more well disposed than Country B to deal with the waste disposal in rivers owing to their natural wetlands doing a better job than Country B's. We can eliminate this option as well

(C) The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country B-Another alternative reason that may help explain why regulations may not help Country B's case. We can eliminate this option as well.

(D) After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels- This is a very strong weakener as it is directly related to the assumption that Country A's regulation is better than Country B's in dealing with water waste disposal. Eliminate.

(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A-This is not a weakener as it does not address or contradict the idea that stricter regulations are the need of the hour in Country B.

Hence the correct answer to this question is option (E)
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Conclusion: Country B needs to implement stricter waste disposal regulations to improve the cleanliness of its rivers.

We are looking for an answer that doesn't weaken the conclusion.

(A) Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B.
This weakens the conclusion as it adds another reason for the better pollution rate in country A, not strict policies

(B) Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country B.
This weakens the conclusion as it adds another reason for the better pollution rate in country A , not strict policies

(C) The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country B.
This weakens the conclusion as it adds another reason for the better pollution rate in country A , not strict policies

(D) After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels.
This weakens the conclusion as it states an example of a country using stricter regulations without success

(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A.
This says that Country B may have another factor that may be neutral or better support country B, but it is still more polluted. This answer doesn't weaken the conclusion.

Answer: E
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(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A.



Only statment which does not weaken the argument, at most, it strengthens it. Indicating country B's more favourable conditions towards having less river pollution, nonetheless still has more pollution, thus the best idea is to enforce more regulation.
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In Country A, levels of river pollution are significantly lower than in Country B, where there are fewer regulations on industrial waste disposal. It is evident from this comparison that Country B needs to implement stricter waste disposal regulations to improve the cleanliness of its rivers.

Each of the following, if true, weakens the argument above EXCEPT:

(A) Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B.

(B) Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country B.

(C) The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country B.

(D) After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels.

(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A.

since it is a weaken Question let us first identify the conclusion and which is "Country B needs to implement stricter waste disposal regulations to improve the cleanliness of its rivers."
now in order to weaken it we have to show that it is the regulations that needs to fixed but there is some other reason.
now looking for options
A. Giving another reason as not the industrial regulations but Industrial facilities in Country A are technologically more advanced hence yes weakener
B. not the industrial regulations but Country A has a more extensive natural wetlands system so another weakner.
C. it is water purification technologies not the industrial regulations hence another weakner
D. Same plan was imposed on another country but not much effect an example which is weakening hence another weakner
E. This option is talking about Country B's rivers which have a higher flow rate and mentions that those rivers disperses pollutants more effectively and hence they are already better so this is not weakening the conclusion
hence E option is the answer.
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Bunuel
12 Days of Christmas 2024 - 2025 Competition with $40,000 of Prizes

In Country A, levels of river pollution are significantly lower than in Country B, where there are fewer regulations on industrial waste disposal. It is evident from this comparison that Country B needs to implement stricter waste disposal regulations to improve the cleanliness of its rivers.

Each of the following, if true, weakens the argument above EXCEPT:

(A) Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B.

(B) Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country B.

(C) The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country B.

(D) After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels.

(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A.
Argument - Country B needs to implement stricter waste disposal regulations to improve the cleanliness of its rivers. Why? Because Country B, where there are fewer regulations on industrial waste disposal than Country A.

Weakens except -
(A) Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B. - This weakens because tech is the reason for lesser waste.

(B) Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country B. - This weakens as new introduction of wetlands lessening pollutants.

(C) The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country B. - Again weakens it because technology better over regulation.

(D) After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels. - This is suggesting that simply adopting similar regulations may not lead to cleaner rivers. Well it weakens but not introducing new aspect as it is needed for weakening. It just suggests that they may not be sufficient on their own. Tricky choice TBH.

(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A. - It clearly weakens.

Answer I think D.
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This question is weakening, but EXCEPT (It doesn't mean Strengthen)

Conclusion: Country B needs to implement stricter waste disposal regulations to improve the cleanliness of its rivers.

Premise: In Country A, levels of river pollution are significantly lower than in Country B, where there are fewer regulations on industrial waste disposal.

Assumption: No other factors can help to improve the cleanliness except waste disposal regulations.

In order to weaken the argument, we need to point another factor that could improve the cleanliness or regulation won't help. But we need to choose EXCEPT

Let's look into the choices,

(A) Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B.
This points out another factor. It's weakening, so INCORRECT.

(B) Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country B.
This points out another factor. It's weakening, so INCORRECT.

(C) The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country B.
It's weakening, so INCORRECT.

(D) After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels.
By comparing neighboring country, it shows no use of regulations. It's weakening, so INCORRECT.

(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A.
This is not Weakening. So, this is CORRECT.

For instance, if Country A's rivers have a higher flow rate than in B's, this could weaken the argument.

So E is the correct answer.
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(A) Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B.
This weakens the argument by suggesting that the lower pollution in Country A is due to advanced technology, not stricter regulations.

(B) Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country B.
This weakens the argument by providing an alternative explanation for the cleaner rivers in Country A: natural wetlands, not regulations.

(C) The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country B.
This weakens the argument by attributing the difference in pollution levels to water purification investments, not regulations.

(D) After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels.
This weakens the argument by suggesting that stricter regulations do not necessarily lead to cleaner rivers, as shown in a comparable case.

(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A. CORRECT
This does not weaken the argument. It describes a characteristic of Country B’s rivers (higher flow rate), but it does not provide a reason why stricter regulations wouldn’t help improve pollution levels. It is irrelevant to the conclusion.


Answer E
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Lets eliminate one-by-one to find a choice which doesn't weaken the argument -

(A) Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B - This tells us that Country A produces less waste. So it's not that stricter regulations are helping Country A but rather the production is less in itself. So Country B applying stricter regulations may or may not reduce the waste - Eliminate (Weakner)

(B) Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country B - Again a weakener as it gives us another reason why Country A has less waste in river (Similar to A) - Eliminate (Weakner)

(C) The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country B - This is also another reason why implementation of stricter regulations would not work - Eliminate (Weakner)

(D) After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels - This weakens the argument by telling us stricter regulations like Country A didn't work in another country - Eliminate (Weakner)

(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A - CORRECT - this tells us that the flow rate of B is already high; so implementation of the regulations might help. This doesn't weaken the argument

Bunuel
12 Days of Christmas 2024 - 2025 Competition with $40,000 of Prizes

In Country A, levels of river pollution are significantly lower than in Country B, where there are fewer regulations on industrial waste disposal. It is evident from this comparison that Country B needs to implement stricter waste disposal regulations to improve the cleanliness of its rivers.

Each of the following, if true, weakens the argument above EXCEPT:

(A) Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B.

(B) Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country B.

(C) The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country B.

(D) After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels.

(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A.

 


This question was provided by GMAT Club
for the 12 Days of Christmas Competition

Win $40,000 in prizes: Courses, Tests & more

 

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The conclusion in the short passage is It is evident from this comparison that Country B needs to implement stricter waste disposal regulations to improve the cleanliness of its rivers. To Paraphrase the rivers in country B are dirty because of lax waste disposal regulations

The question Each of the following, if true, weakens the argument above EXCEPT:

To weaken the argument would be to say that the Rivers in country B are dirty because of reasons other than a lax regulation

But there is an EXCEPT! this becomes confusing. Are we looking for options that do the opposite of weaken which would be to corroborate or strengthen. However, to look that way we would not be able to pick any option. Another conclusion would be to focus on an option that does not address the conclusion, so neither weakens nor strengthens

A. Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B.

This weakens the argument

B. Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country

This weakens the argument

C. The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country

There is no information to suggest whether this technology is used in keeping the river clean or is used to purify the water coming from the river

D. After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels.

This weakens the argument

E. Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A.

This weakens the argument
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The argument claims that stricter regulations in Country B would reduce river pollution, based on the example of Country A. The correct answer must not weaken this claim.

(A) Advanced technology in Country A reduces waste, suggesting pollution differences are due to tech, not regulations. Eliminated.
(B) Country A’s wetlands filter pollutants, providing a natural explanation for cleaner rivers. Eliminated.
(C) Country A uses costly water purification technology, unrelated to regulations. Stricter regulations in Country B could still help. Correct.
(D) Similar regulations in another country didn’t improve pollution, questioning their effectiveness. Eliminated.
(E) Country B’s rivers naturally disperse pollutants, suggesting pollution is reduced by natural factors, not regulations. Eliminated.

Correct Answer: (C)
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In Country A, levels of river pollution are significantly lower than in Country B, where there are fewer regulations on industrial waste disposal. It is evident from this comparison that Country B needs to implement stricter waste disposal regulations to improve the cleanliness of its rivers.

Each of the following, if true, weakens the argument above EXCEPT:

(A) Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B.

(B) Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country B.

(C) The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country B.

(D) After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels.

(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A.

since it is a weaken Question let us first identify the conclusion and which is "Country B needs to implement stricter waste disposal regulations to improve the cleanliness of its rivers."
now in order to weaken it we have to show that it is the regulations that needs to fixed but there is some other reason.
now looking for options
A. Giving another reason as not the industrial regulations but Industrial facilities in Country A are technologically more advanced hence yes weakener
B. not the industrial regulations but Country A has a more extensive natural wetlands system so another weakner.
C. it is water purification technologies not the industrial regulations hence another weakner
D. Same plan was imposed on another country but not much effect an example which is weakening hence another weakner
E. This option is talking about Country B's rivers which have a higher flow rate and mentions that those rivers disperses pollutants more effectively and hence they are already better so this is not weakening the conclusion
hence E option is the answer.
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The argument states that Country B needs to implement stricter waste disposal regulations to improve the cleanliness of its rivers. The argument is based on a comparison with Country A, where river pollution is lower, and assumes that the stricter regulations in Country A are the main reason for this difference.

To weaken the argument, a statement must show that factors other than regulations could explain the difference in pollution levels, or that implementing stricter regulations might not lead to the desired improvement in Country B.

Now let’s evaluate each option:
(A) Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B.

Analysis: This weakens the argument by suggesting that lower pollution in Country A is due to technological differences, not regulations.

Result: Weakens the argument.

(B) Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country B.

Analysis: This weakens the argument by indicating that the cleaner rivers in Country A are due to natural features, not stricter regulations.

Result: Weakens the argument.

(C) The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country B.

Analysis: This weakens the argument by showing that the lower pollution levels in Country A are a result of water purification investments, not stricter waste regulations.

Result: Weakens the argument.

(D) After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels.

Analysis: This weakens the argument by providing evidence that stricter waste regulations may not actually reduce pollution levels.

Result: Weakens the argument.

(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A.

Analysis: This does not weaken the argument because it does not explain why Country B’s rivers remain polluted despite having a flow rate that disperses pollutants. It merely discusses flow characteristics but does not undermine the idea that stricter regulations might help.

Result: Does not weaken the argument.
Answer: (E)
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A) This undermines the argument by suggesting that the difference in pollution levels is due to the technology used and not due to the waste disposal regulations. Incorrect

B)This means that the lower pollution levels in Country A might be due to natural filtration rather than due to stricter regulations. Incorrect

C)This suggests that the lower pollution levels in Country A may be due to water purification technologies and not due to regulations. Incorrect.

D)This opt. weakens the argument by giving the evidence that implementing similar regulations might not lead to clean rivers. Incorrect

E) This opt. talks about the Country B’s natural conditions but does not challenge the need for stricter regulations to improve river cleanliness.. This directly weakens the argument. Hence Correct.

Ans-E
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The argument concludes that Country B should implement stricter waste disposal regulations to improve the cleanliness of its rivers, based on the comparison with Country A. To weaken this argument, one must provide reasons other than the regulations for why Country A's rivers are less polluted.

Analysis of the answer choices:
(A) Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B.
This suggests that the lower pollution levels in Country A might be due to advanced technology rather than stricter regulations. Thus, it weakens the argument.

(B) Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country B.
If natural wetlands are responsible for cleaner rivers in Country A, it undermines the conclusion that stricter regulations are the key factor. This weakens the argument.

(C) The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country B.
This alternative explanation—that Country A's cleaner rivers are due to water purification investments rather than regulations—also weakens the argument.

(D) After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels.
This directly challenges the effectiveness of stricter waste disposal regulations, weakening the argument.

(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A.
This does not weaken the argument. If anything, it suggests that Country B's rivers might already have a natural advantage in dispersing pollutants, which does not contradict the need for stricter regulations. It does not challenge the link between stricter regulations and improved cleanliness.

Correct Answer: (E)
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12 Days of Christmas 2024 - 2025 Competition with $40,000 of Prizes

In Country A, levels of river pollution are significantly lower than in Country B, where there are fewer regulations on industrial waste disposal. It is evident from this comparison that Country B needs to implement stricter waste disposal regulations to improve the cleanliness of its rivers.

Each of the following, if true, weakens the argument above EXCEPT:

(A) Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B.

(B) Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country B.

(C) The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country B.

(D) After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels.

(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A.

 


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(A) Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B.

This option weakens the argument as it gives us an information that counters the fact that implementing stricter waste disposal regulations will improve the cleanliness of rivers in Country B. This provides an alternate factor / reason for the lower pollution levels in Country A.

(B) Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country B.

This option weakens the argument as it gives us an information that counters the fact that implementing stricter waste disposal regulations will improve the cleanliness of rivers in Country B. This provides an alternate factor / reason for the lower pollution levels in Country A.

(C) The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country B.

This option weakens the argument as it gives us an information that counters the fact that implementing stricter waste disposal regulations will improve the cleanliness of rivers in Country B. This provides an alternate factor / reason for the lower pollution levels in Country A.

(D) After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels.

This option contradicts the stated plan, hence weakens the argument. If the plan didn't work in another country, it probably won't work in Country B. We can eliminate this option.

(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A.

Correct. This option provides an advantage that Country B already has. If the high river rates disperse pollutants more effectively, yet Country B has high pollution levels, this indicates some stricter regulations are required to reduce the pollution levels.

Option E
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