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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
85% (01:37) correct
15%
(01:46)
wrong
based on 378
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History
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Lactose, a sugar found in milk, aids in the absorption of calcium, which in turn is required for bone repair. In addition to there being shortages of milk in tropical areas, inhabitants of these areas lose the ability to absorb lactose, unlike people from nontropical areas. Yet inhabitants of tropical areas have no more problems with bone repair than do people who inhabit nontropical areas.
Which one of the following, if true, most helps to resolve the apparent paradox described above?
A. People living in tropical areas periodically take tablets containing lactose when there are shortages of milk.
B. Milk consumption has fallen in both tropical and nontropical areas.
C. The abundant sunlight in tropical areas causes the human body to produce vitamin D naturally, which aids in the absorption of calcium.
D. Consumption of dairy products other than milk has risen slightly in tropical areas.
E The extent to which people living in tropical areas lose the ability to absorb lactose depends on a genetic predisposition.
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Which one of the following, if true, most helps to resolve the apparent paradox described above?
A. People living in tropical areas periodically take tablets containing lactose when there are shortages of milk.
B. Milk consumption has fallen in both tropical and nontropical areas.
C. The abundant sunlight in tropical areas causes the human body to produce vitamin D naturally, which aids in the absorption of calcium.
D. Consumption of dairy products other than milk has risen slightly in tropical areas.
E The extent to which people living in tropical areas lose the ability to absorb lactose depends on a genetic predisposition.
+1 Kudos will help me tremendously!
Thank you ??
harsh61998
Joined: 08 Sep 2019
Last visit: 17 Aug 2024
Posts: 16
Location: India
Concentration: Finance, Statistics
GPA: 4
WE:Analyst (Consulting)
Posts: 16
IMO C.
This is a rather simple question.
Understanding the question
The question says that lactose aids in absorption of calcium and calcium is required for bone repair. The source of lactose is milk. Also, in tropical areas there is a shortage of milk but the inhabitants of tropical regions have the same bone repair as non-tropical inhabitants.
Pre-thinking
The question also mentions that the inhabitants of the tropical region are losing their ability to absorb lactose. This implies that the inhabitants have another way or source of calcium apart from milk.
So from pre-thinking we can come to a tentative answer that the inhabitants have another source of calcium.
Looking at the options
Therefore, the answer is C.
This is a rather simple question.
Understanding the question
The question says that lactose aids in absorption of calcium and calcium is required for bone repair. The source of lactose is milk. Also, in tropical areas there is a shortage of milk but the inhabitants of tropical regions have the same bone repair as non-tropical inhabitants.
Pre-thinking
The question also mentions that the inhabitants of the tropical region are losing their ability to absorb lactose. This implies that the inhabitants have another way or source of calcium apart from milk.
So from pre-thinking we can come to a tentative answer that the inhabitants have another source of calcium.
Looking at the options
Quote:
The choice is incorrect. The amount of lactose absorbed by tropical inhabitants is decreasing. So taking tablets when there is shortage of milk does not resolve the paradox.
Quote:
The amount of milk consumed is irrelevant. We are concerned with the amount of lactose absorbed.
Quote:
This option is in line with our pre-thinking. It tells us that sunlight is the alternate source which helps to absorb more calcium.
Quote:
We do not know if dairy products other than milk have lactose and that they assist in the absorption of calcium.
Quote:
Even if the extent to which the absorption of lactose decreases is a genetic trait, the tropical inhabitants have shortages of milk which cannot be replenished.
Therefore, the answer is C.
yashikaaggarwal
Senior Moderator - Masters Forum
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The author intends to say the inhabitants of tropical area don't face any bone repair related problem despite of having shortage of milk in tropical areas. Because Lactose, a sugar found in milk, aids in the absorption of calcium, which in turn is required for bone repair.
Now we have to find a point which satisfies the author's statement:
A. People living in tropical areas periodically take tablets containing lactose when there are shortages of milk. (its not necessary that all tropical inhabitants are consuming tablets containing lactose, moreover if they can purchase those tablets(where it is manufactured), they can purchase milk from non-tropical area as well.) (incorrect)
B. Milk consumption has fallen in both tropical and nontropical areas. ( this would have lessen bone repairing ability for both, which is not stated. ) (Incorrect)
C. The abundant sunlight in tropical areas causes the human body to produce vitamin D naturally, which aids in the absorption of calcium.(YES, the sun rays are enrich in Vitamin D which strengthens bone capacity, which is abundant on tropical places and the inhabitants don't have to purchase it as well) (CORRECT)
D. Consumption of dairy products other than milk has risen slightly in tropical areas. (But its in shortage there right? we have no stats to prove this) (Incorrect)
E The extent to which people living in tropical areas lose the ability to absorb lactose depends on a genetic predisposition. (that means only a few people will be having strong bones, which is not the case) (Incorrect)
Answer is C
_________________
Now we have to find a point which satisfies the author's statement:
A. People living in tropical areas periodically take tablets containing lactose when there are shortages of milk. (its not necessary that all tropical inhabitants are consuming tablets containing lactose, moreover if they can purchase those tablets(where it is manufactured), they can purchase milk from non-tropical area as well.) (incorrect)
B. Milk consumption has fallen in both tropical and nontropical areas. ( this would have lessen bone repairing ability for both, which is not stated. ) (Incorrect)
C. The abundant sunlight in tropical areas causes the human body to produce vitamin D naturally, which aids in the absorption of calcium.(YES, the sun rays are enrich in Vitamin D which strengthens bone capacity, which is abundant on tropical places and the inhabitants don't have to purchase it as well) (CORRECT)
D. Consumption of dairy products other than milk has risen slightly in tropical areas. (But its in shortage there right? we have no stats to prove this) (Incorrect)
E The extent to which people living in tropical areas lose the ability to absorb lactose depends on a genetic predisposition. (that means only a few people will be having strong bones, which is not the case) (Incorrect)
Answer is C
_________________
Nipungupta9081
School Moderator - INSEAD Masters
Joined: 07 Jan 2020
Last visit: 06 Sep 2026
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Location: India
GPA: 4
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Posts: 501
Answer C
A. People living in tropical areas periodically take tablets containing lactose when there are shortages of milk. - The amount of lactose absorbed by tropical inhabitants is decreasing. Doesn't resolve the pradox. ( X )
B. Milk consumption has fallen in both tropical and nontropical areas. - IRRELEVANT. ( x )
C. The abundant sunlight in tropical areas causes the human body to produce vitamin D naturally, which aids in the absorption of calcium. - Vitamin D works as a substitute for Milk this resolves the paradox. ( ✔ )
D. Consumption of dairy products other than milk has risen slightly in tropical areas. - IRRELEVANT ( X )
E The extent to which people living in tropical areas lose the ability to absorb lactose depends on a genetic predisposition. - IF its genetic it should only effect some people not the whole population. ( x )
A. People living in tropical areas periodically take tablets containing lactose when there are shortages of milk. - The amount of lactose absorbed by tropical inhabitants is decreasing. Doesn't resolve the pradox. ( X )
B. Milk consumption has fallen in both tropical and nontropical areas. - IRRELEVANT. ( x )
C. The abundant sunlight in tropical areas causes the human body to produce vitamin D naturally, which aids in the absorption of calcium. - Vitamin D works as a substitute for Milk this resolves the paradox. ( ✔ )
D. Consumption of dairy products other than milk has risen slightly in tropical areas. - IRRELEVANT ( X )
E The extent to which people living in tropical areas lose the ability to absorb lactose depends on a genetic predisposition. - IF its genetic it should only effect some people not the whole population. ( x )
Posts: 23
A. People living in tropical areas periodically take tablets containing lactose when there are shortages of milk.
People lost the ability to absorb calcium is not just because of shortage of milk but with some other reason also.
B. Milk consumption has fallen in both tropical and nontropical areas.
not related
C. The abundant sunlight in tropical areas causes the human body to produce vitamin D naturally, which aids in the absorption of calcium.
perfectly explains
D. Consumption of dairy products other than milk has risen slightly in tropical areas.
doesn't matter.
E The extent to which people living in tropical areas lose the ability to absorb lactose depends on a genetic predisposition.
we don't care about the extent, we care about explaining why
ANSWER_C
People lost the ability to absorb calcium is not just because of shortage of milk but with some other reason also.
B. Milk consumption has fallen in both tropical and nontropical areas.
not related
C. The abundant sunlight in tropical areas causes the human body to produce vitamin D naturally, which aids in the absorption of calcium.
perfectly explains
D. Consumption of dairy products other than milk has risen slightly in tropical areas.
doesn't matter.
E The extent to which people living in tropical areas lose the ability to absorb lactose depends on a genetic predisposition.
we don't care about the extent, we care about explaining why
ANSWER_C
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