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EducationAisle
I believe as well as is not strictly a parallelism trigger, and should be substituted by in addition to.

ravigupta2912
I get that we are trying to make a parallel between the "caused A, B and C" and "failure to" - nouns and nouns. But if i remove the parallel element 1 i.e. caused A, B and C, the sentence would become as under:-

Early administrative decisions in China’s Ming Dynasty a failure to make sufficient investment in vital transportation infrastructure.
Shouldn't it be:

Early administrative decisions in China’s Ming Dynasty caused a failure to make sufficient investment in vital transportation infrastructure.

In other words, caused is outside the parallelism structure.

If "caused" is outside the parallel structure then why do we need A,B, and C in addition to / as well as / D? especially if A, B, C and D are all nouns / noun phrases? Why can't we simply say "caused A, B, C and D"?
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If "caused" is outside the parallel structure then why do we need A,B, and C in addition to / as well as / D? especially if A, B, C and D are all nouns / noun phrases? Why can't we simply say "caused A, B, C and D"?
Hi Ravi, your above question does not seem to be related to parallelism; you are basically asking what the difference is, between the usage of and and as well as.

Conceptually speaking, and places similar emphasis on all elements connected by and, while as well as puts more emphasis on the elements that precede it.

Whether to use and or as well as, depends on the relative emphasis that the author of the sentence decides to put on the various elements. I don't recollect a sentence where the only difference between two choices is and vs as well as
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If "caused" is outside the parallel structure then why do we need A,B, and C in addition to / as well as / D? especially if A, B, C and D are all nouns / noun phrases? Why can't we simply say "caused A, B, C and D"?
Hi Ravi, your above question does not seem to be related to parallelism; you are basically asking what the difference is, between the usage of and and as well as.

Conceptually speaking, and places similar emphasis on all elements connected by and, while as well as puts more emphasis on the elements that precede it.

Whether to use and or as well as, depends on the relative emphasis that the author of the sentence decides to put on the various elements. I don't recollect a sentence where the only difference between two choices is and vs as well as

No. There's a "and" that precedes the element C as well. I am unable to understand the logic that if A, B, C and D are all nouns / noun phrases then why do we need two "and" or "as well as" especially if none of them is a compound noun. A,B and C as well as D (or and D) just breaks the parallelism for me.
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No. There's a "and" that precedes the element C as well. I am unable to understand the logic that if A, B, C and D are all nouns / noun phrases then why do we need two "and" or "as well as" especially if none of them is a compound noun. A,B and C as well as D (or and D) just breaks the parallelism for me.
Hi Ravi, the sentence says:

...caused a drastic fall in tax revenues, a reduction in military preparedness, and the collapse of the currency system, as well as a failure to make...

So, equal emphasis is on:

i) a drastic fall in tax revenues
ii) a reduction in military preparedness, and
iii) the collapse of the currency system

Slightly unequal emphasis has been placed on:

iv) a failure to make..

All of these elements [i, ii, iii, and iv] are noun-phrases. So, how exactly is the parallelism breaking?
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The decisions : caused A,B and C, and failed D.
Why is this wrong from option A?
Why can't we just say that the decisions failed to make ...
Why do we have to say the decisions caused a failure?
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The decisions : caused A,B and C, and failed D.
Why is this wrong from option A?
The first and is not present in A.

So, A's structure is:

..caused A,B,C and failed D.
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Early administrative decisions in China’s Ming Dynasty eventually caused a drastic fall in tax revenues, a reduction in military preparedness, the collapse of the currency system, and failed to make sufficient investment in vital transportation infrastructure.

(A) the collapse of the currency system, and failed
(B) the collapse of the currency system, and failing
(C) and the collapse of the currency system, also failed
(D) the collapse of the currency system, as well as failing
(E) and the collapse of the currency system, as well as a failure


GMATNinja please help!


How come C is wrong?

X caused (1), (2) and (3), also failed to do (4)

What is wrong/unparallel in the above construction?
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AbdurRakib
Early administrative decisions in China’s Ming Dynasty eventually caused a drastic fall in tax revenues, a reduction in military preparedness, the collapse of the currency system, and failed to make sufficient investment in vital transportation infrastructure.

(A) the collapse of the currency system, and failed
(B) the collapse of the currency system, and failing
(C) and the collapse of the currency system, also failed
(D) the collapse of the currency system, as well as failing
(E) and the collapse of the currency system, as well as a failure


GMATNinja please help!


How come C is wrong?

X caused (1), (2) and (3), also failed to do (4)

What is wrong/unparallel in the above construction?
Anytime you have the same subject performing multiple actions, those actions need to be connected by a conjunction, such as "and."

We can write "Tim screamed and flailed." But if you see, "Tim screamed, flailed," or "Tim screamed also flailed," you can probably sense that something is missing.

Similarly, we can write, "Decisions caused and failed," but not "Decisions caused also failed."

As Dinesh notes, "also" isn't a conjunction -- it's an adverb, so it can't connect multiple actions by itself.

I hope that clears things up!
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I realize that you are not supposed to rewrite GMAT questions. However, if you added an "and" before "the collapse" --->

"Early administrative decisions in China???s Ming Dynasty eventually caused a drastic fall in tax revenues, a reduction in military preparedness, and the collapse of the currency system, and failed to make sufficient investment in vital transportation infrastructure."

Would this be correct?
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woohoo921
I realize that you are not supposed to rewrite GMAT questions. However, if you added an "and" before "the collapse" --->

"Early administrative decisions in China???s Ming Dynasty eventually caused a drastic fall in tax revenues, a reduction in military preparedness, and the collapse of the currency system, and failed to make sufficient investment in vital transportation infrastructure."

Would this be correct?
Yes, with an "and" added there, the lists become logical.
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woohoo921
I realize that you are not supposed to rewrite GMAT questions. However, if you added an "and" before "the collapse" --->

"Early administrative decisions in China???s Ming Dynasty eventually caused a drastic fall in tax revenues, a reduction in military preparedness, and the collapse of the currency system, and failed to make sufficient investment in vital transportation infrastructure."

Would this be correct?
Yes, with an "and" added there, the lists become logical.
MartyTargetTestPrep
Sir, if we do that then the sentence could be like...
Early administrative decisions failed to make sufficient investment...
How a decision failed to make investment? Can you clarify, please?
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woohoo921
I realize that you are not supposed to rewrite GMAT questions. However, if you added an "and" before "the collapse" --->

"Early administrative decisions in China???s Ming Dynasty eventually caused a drastic fall in tax revenues, a reduction in military preparedness, and the collapse of the currency system, and failed to make sufficient investment in vital transportation infrastructure."

Would this be correct?
Yes, with an "and" added there, the lists become logical.
MartyTargetTestPrep
Sir, if we do that then the sentence could be like...
Early administrative decisions failed to make sufficient investment...
How a decision failed to make investment? Can you clarify, please?
Good point. The list works grammatically with "and" added there, but the meaning conveyed by that version is illogical.
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ExpertsGlobal5
Dear Friends,

Here is a detailed explanation to this question-
AbdurRakib
The Official Guide for GMAT Verbal Review 2018
Practice Question
Sentence Correction
Question no. 293
Early administrative decisions in China’s Ming Dynasty eventually caused a drastic fall in tax revenues, a reduction in military preparedness, the collapse of the currency system, and failed to make sufficient investment in vital transportation infrastructure.

(A) the collapse of the currency system, and failed
(B) the collapse of the currency system, and failing
(C) and the collapse of the currency system, also failed
(D) the collapse of the currency system, as well as failing
(E) and the collapse of the currency system, as well as a failure

Concepts tested here: Parallelism + Grammatical Construction

• All elements in a list must be parallel.
• Semicolons and the “comma + conjunction” construction are used to link two independent clauses; commas are used to link an independent clause with a dependent one; comma cannot be used to join two independent clauses.
• Any elements joined by a conjunction ("as well as" in this case) must be parallel.

A: This answer choice fails to maintain parallelism among "a drastic fall in tax revenues", "a reduction in military preparedness", "the collapse of the currency system" - all noun phrases - and "failed to make sufficient investment in vital transportation infrastructure" - a verb phrase; remember, all elements in a list must be parallel.

B: This answer choice fails to maintain parallelism among "a drastic fall in tax revenues", "a reduction in military preparedness", "the collapse of the currency system" - all noun phrases - and "failing to make sufficient investment in vital transportation infrastructure" - a verb phrase; remember, all elements in a list must be parallel.

C: This answer choice incorrectly uses the "comma + conjunction ("also" in this case)" construction to join the independent clause "Early administrative decisions in China’s Ming Dynasty eventually caused...the currency system" and the dependent clause "failed to make sufficient investment in vital transportation infrastructure"; remember, semicolons and the “comma + conjunction” construction are used to link two independent clauses; commas are used to link an independent clause with a dependent one; comma cannot be used to join two independent clauses.

D: This answer choice fails to maintain parallelism among "a drastic fall in tax revenues", "a reduction in military preparedness", "the collapse of the currency system" - all noun phrases - and "failing to make sufficient investment in vital transportation infrastructure" - a verb phrase; remember, all elements in a list must be parallel.

E: Correct. This answer choice correctly maintains parallelism among "a drastic fall in tax revenues", "a reduction in military preparedness", and "the collapse of the currency system". Further, Option E maintains parallelism between the noun phrases "a drastic fall in tax revenues, a reduction in military preparedness, and the collapse of the currency system" and "a failure to make sufficient investment in vital transportation infrastructure"; remember, two elements joined by a conjunction ("as well as" in this case) must be parallel. Additionally, Option E correctly uses a comma to join the independent clause "Early administrative decisions in China’s Ming Dynasty eventually caused...the currency system" and the dependent clause "as well as a failure to make sufficient investment in vital transportation infrastructure".

Hence, E is the best answer choice.

Additional Note: Option E slightly alters the construction of the sentence by separating the final element of the list - "a failure..." - into an additive phrase, modifier phrases that add nouns onto another noun but are not part of the main subject of a sentence.

To understand the use of punctuation on GMAT, you may want to watch the following video (~9 minutes):



All the best!
Experts' Global Team

According to your explanation if in C option, we replace also with and then it would be still wrong??? Experts Please guide me here....

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That wouldn't work, since there's no subject for "failed." The decisions can't have failed. They simply led to A FAILURE in the government or society. (Exactly who failed to make this investment is never specified.)
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GMATNinja, @egmatverbal, KarishmaB. This is a very basic question, but where i went wrong was that i was unable to discern that these were noun phrases and they had to be parallel. How do you make this distinction?
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GMATNinja, @‌egmatverbal, KarishmaB. This is a very basic question, but where i went wrong was that i was unable to discern that these were noun phrases and they had to be parallel. How do you make this distinction?
There's a list that starts in the non-underline portion: "a drastic fall in tax revenues, a reduction in military preparedness..." So just from that, we can see that it's a list of things caused by the decisions: the fall (in tax revenues) and the reduction (in military preparedness).

All five options then go on to list a third thing in the list: the collapse (of the currency system). Again, this is something caused by the decisions.

So after the final comma, we're looking for some other thing (some other noun or noun clause) that was caused by the decisions, and that's what we get in (E): a failure to make {...}.

In contrast, there's nothing for "failed" (a verb) to be parallel to -- the decisions themselves didn't fail to make a sufficient investment.
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