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SC Question

Expert replies
by pritam.ryders » Sat Mar 08, 2014 10:10 am
The auto industry has experienced one of its most significant trends in the last 50 years, which is the migration of motorists from passenger cars to minivans, sport utility vehicles, and pickups.

(A) The auto industry has experienced one of its most significant trends in the last 50 years, which is
(B) Of the trends the auto industry experienced in the last 50 years has been one of the most significant
(C) In the last 50 years, one of the most significant trends that the auto industry has been experiencing has been
(D) One of the most significant trends that the auto industry has experienced in the last 50 years is
(E) In the last 50 years, the auto industry experienced one of the most significant trends that it has had, that of
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Source: — Sentence Correction |

by theCodeToGMAT » Sat Mar 08, 2014 11:53 pm
{A} INCORRECT; "which" antecedent issue
{B} INCORRECT; awkward constuct - what has been one of the most?
{C} INCORRECT; tense issue "has been"
{D} CORRECT
{E} INCORRECT; awkward construct "hat it has had, that of"

Is it {D}?
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by pritam.ryders » Sun Mar 09, 2014 1:07 am
Yes the answer is indeed D..but i am confused "One of the most significant trends" trends should be plural right.
please elaborate.
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by theCodeToGMAT » Sun Mar 09, 2014 1:30 am
pritam.ryders wrote:Yes the answer is indeed D..but i am confused "One of the most significant trends" trends should be plural right.
please elaborate.
No, that should be singular only.
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by GMATGuruNY » Sun Mar 09, 2014 3:46 am
pritam.ryders wrote:Yes the answer is indeed D..but i am confused "One of the most significant trends" trends should be plural right.
please elaborate.
One of the most significant trends that the auto industry has experienced in the last 50 years is the migration of motorists from passenger cars to minivans, sport utility vehicles, and pickups.

A preposition such as of signals the start of a MODIFIER.
In the sentence above, the portion in red serves to modify the preceding subject one.
If we remove the modifier in red, we get:
ONE IS the migration of motorists from passenger cars to minivans, sport utility vehicles, and pickups.
Here, is (singular) agrees with one (singular).
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by [email protected] » Sun Mar 09, 2014 10:17 pm
Hi pritam.ryders,

Mitch has correctly explained one of the major grammar rules behind this question, so I won't rehash it here.

I do want to point out that while the phrase "significant trends" is plural, the author has "shifted" the subject to the word "ONE", which is singular. This type of plural-to-singular shift will occur at least once in an SC on your GMAT. It's a great way to test your attention-to-detail while also testing a fairly straight-forward grammar rule (subject-verb agreement). Be on the lookout for this rule on Test Day.

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by Alchemist14 » Sat Oct 08, 2016 7:01 pm
GMATGuruNY wrote:
One of the most significant trends that the auto industry has experienced in the last 50 years is the migration of motorists from passenger cars to minivans, sport utility vehicles, and pickups.

A preposition such as of signals the start of a MODIFIER.
In the sentence above, the portion in red serves to modify the preceding subject one.
If we remove the modifier in red, we get:
ONE IS the migration of motorists from passenger cars to minivans, sport utility vehicles, and pickups.
Here, is (singular) agrees with one (singular).
Hi Mitch,

Thanks for the great exlanation.

Just a few doubts,

I narrowed down to C and D. But then got confused. Both use 'in the last 50 years',
which is past tense, right? So we would need 'one of the most significant trends has been' rather than
'one of the most singnificant trends is'. Or is D correct as no other trend surpassed this trend- It is
still the most significant trend.

Could you please explain the difference between C and D?

Thanks in advance,
Al
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by GMATGuruNY » Sun Oct 09, 2016 3:16 am
Alchemist14 wrote:Could you please explain the difference between C and D?
C: In the last 50 years, one of the most significant trends that the auto industry has been experiencing
Here, has been experiencing conveys continuous action, while IN the last 50 years does not.
The present perfect progressive -- has been + VERBing -- requires a modifier that suggests continuous action.
Incorrect: John has been dancing IN the last ten minutes.
Correct: John has been dancing FOR the last ten minutes.
Eliminate C.
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