Last visit was: 19 Nov 2025, 20:29 It is currently 19 Nov 2025, 20:29
Close
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Close
Request Expert Reply
Confirm Cancel
User avatar
daagh
User avatar
Major Poster
Joined: 19 Feb 2007
Last visit: 16 Oct 2020
Posts: 5,264
Own Kudos:
42,419
 [1]
Given Kudos: 422
Status: enjoying
Location: India
WE:Education (Education)
Expert
Expert reply
Posts: 5,264
Kudos: 42,419
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
daagh
User avatar
Major Poster
Joined: 19 Feb 2007
Last visit: 16 Oct 2020
Posts: 5,264
Own Kudos:
42,419
 [1]
Given Kudos: 422
Status: enjoying
Location: India
WE:Education (Education)
Expert
Expert reply
Posts: 5,264
Kudos: 42,419
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
rekhabishop
Joined: 22 Sep 2016
Last visit: 18 May 2018
Posts: 131
Own Kudos:
Given Kudos: 42
Location: India
GMAT 1: 710 Q50 V35
GPA: 4
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
daagh
User avatar
Major Poster
Joined: 19 Feb 2007
Last visit: 16 Oct 2020
Posts: 5,264
Own Kudos:
Given Kudos: 422
Status: enjoying
Location: India
WE:Education (Education)
Expert
Expert reply
Posts: 5,264
Kudos: 42,419
Kudos
Add Kudos
Bookmarks
Bookmark this Post
rekhabishop
I don't think C is wrong because of the 'that require'; 'that require' smugly modifies the mandates and is as good as 'mandates requiring' as in A.
The problem as I see is in the pronoun 'its'. For that sake, if you change 'its' to 'their', then there would two correct choices leading to confusion.
User avatar
rekhabishop
Joined: 22 Sep 2016
Last visit: 18 May 2018
Posts: 131
Own Kudos:
Given Kudos: 42
Location: India
GMAT 1: 710 Q50 V35
GPA: 4
Kudos
Add Kudos
Bookmarks
Bookmark this Post
daagh
rekhabishop
I don't think C is wrong because of the 'that require'; 'that require' smugly modifies the mandates and is as good as 'mandates requiring' as in A.
The problem as I see is in the pronoun 'its'. For that sake, if you change 'its' to 'their', then there would two correct choices leading to confusion.

Thank for the quick turn-around, daagh !!
I really admire your answers. You do not take things for granted and explain every single aspect, in great detail. You start from scratch, always assuming that the reader might be a beginner.
I owe all my verbal score to you!! :)
User avatar
daagh
User avatar
Major Poster
Joined: 19 Feb 2007
Last visit: 16 Oct 2020
Posts: 5,264
Own Kudos:
Given Kudos: 422
Status: enjoying
Location: India
WE:Education (Education)
Expert
Expert reply
Posts: 5,264
Kudos: 42,419
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Rekha Hi,
Your words are a great source of comfort to me. Thank you
User avatar
PaterD
Joined: 11 Oct 2017
Last visit: 11 Aug 2018
Posts: 22
Own Kudos:
Given Kudos: 68
GMAT 1: 560 Q38 V29
GMAT 1: 560 Q38 V29
Posts: 22
Kudos: 24
Kudos
Add Kudos
Bookmarks
Bookmark this Post
daagh
MaximD
C. has been a combination of federal tax incentives and state mandates that require utilities to increase the percentage of renewable power in its
1. 'mandates' is not a verb; it is used as plural noun and mandate is the singular noun; that is a relative pronoun here referring to the mandates and not as a subjunctive mood marker.
2. If the choice were to use the command subjunctive, then the construction--mandates that require utilities to increase--doesn't make much meaning. The correct structure then would be --state mandates that utilities require to increase --
3. Logically in a federal set up, normally a state may want to increase its own percentage of renewable power but not the entire country's

First of all daagh Thanks for sharing, great explanation.

Regarding the "it's vs their" IMHO It's refers to the country in possession of a portfolio. The state mandates are evicted by the state government to order a local government, and in this case are done to increase the production of renewable power, Federal regulation is not my field, but I imagine power is controlled by state government too.
So... I can't see how "their" can fit in the phrase, as portfolio is singular, and tax incentives and the mandates even if plural are clearly linked to "a combination" wich is singular (and can't own a share of renewable power portfolio)... even if the phrase could possibly refers to states, there should be a clearer reference for them, and there isn't any options for "states to own porftolios" in the choices.

So that leaves me with C as the only grammatically correct choice.

And finally, I found it on Veritas APP.

Cheers
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 19 Nov 2025
Posts: 105,390
Own Kudos:
778,386
 [1]
Given Kudos: 99,977
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 105,390
Kudos: 778,386
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
hazelnut

Difficulty Level: 750-800
Tricky Question



The primary catalyst fueling the rapid spread of wind farms across the country – from offshore platforms along the coasts through the vast deserts and plains – has been a combination of federal tax incentives and state mandates requiring utilities to raise renewable power to increasing percentages of their overall energy production.


A. has been a combination of federal tax incentives and state mandates requiring utilities to raise renewable power to increasing percentages of their

B. have been combinations of federal tax incentives and state mandates requiring utilities to raise renewable power to increasing percentages of their

C. has been a combination of federal tax incentives and state mandates that require utilities to raise renewable power to an increasing percentage of its

D. have been a combination of federal tax incentives and state mandates that require utilities to raise renewable power to increasing percentages of their

E. has been a combination of federal tax incentives and of state mandates requiring utilities to raise renewable power to increasing percentages of their

VERITAS PREP OFFICIAL SOLUTION:



As you first look at this problem, you should immediately identify two singular-vs.-plural Decision Points: the verb tense in "has" vs. "have" at the first word of the answer choices, and the fact that several choices end with either "its" or "their."

The first decision point, "has" vs. "have," requires you to find the subject of that initial verb. And while the problem throws several nouns at you via modifiers, the correct subject is "catalyst," which is singular. This means that "has" is required, helping you to eliminate B and D.

For the pronoun "its" vs. "their" at the end of the sentence, recognize that the antecedent is "utilities," since utilities are the only noun capable of having overall energy production. Because "utilities" is plural, you can eliminate "its" and answer choices C and E. Therefore, choice A is correct.
User avatar
rahul16singh28
Joined: 31 Jul 2017
Last visit: 09 Jun 2020
Posts: 428
Own Kudos:
Given Kudos: 752
Location: Malaysia
GPA: 3.95
WE:Consulting (Energy)
Posts: 428
Kudos: 499
Kudos
Add Kudos
Bookmarks
Bookmark this Post
hazelnut

Difficulty Level: 750-800
Tricky Question



The primary catalyst fueling the rapid spread of wind farms across the country – from offshore platforms along the coasts through the vast deserts and plains – has been a combination of federal tax incentives and state mandates requiring utilities to raise renewable power to increasing percentages of their overall energy production.


A. has been a combination of federal tax incentives and state mandates requiring utilities to raise renewable power to increasing percentages of their

B. have been combinations of federal tax incentives and state mandates requiring utilities to raise renewable power to increasing percentages of their

C. has been a combination of federal tax incentives and state mandates that require utilities to raise renewable power to an increasing percentage of its

D. have been a combination of federal tax incentives and state mandates that require utilities to raise renewable power to increasing percentages of their

E. has been a combination of federal tax incentives and of state mandates requiring utilities to raise renewable power to increasing percentages of their

Based on SV Error, we can eliminate B,C & D. Out of A & E, A is correct because Combination of X & Y is correct Idiom, not combination of X & of Y. IMO
User avatar
gvij2017
Joined: 09 Aug 2017
Last visit: 18 Jun 2024
Posts: 674
Own Kudos:
Given Kudos: 778
Posts: 674
Kudos: 486
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hello all,

I agree with all explanation but something is changed in this thread which is different from given question.
Look at "to increasing" in underlined portion. As much as I know this is totally disastrous use of infinitive.

Where am I wrong?
avatar
zeyneptuzun
Joined: 20 May 2019
Last visit: 16 Jul 2019
Posts: 15
Own Kudos:
Given Kudos: 5
Location: United States
Posts: 15
Kudos: 14
Kudos
Add Kudos
Bookmarks
Bookmark this Post
It's A imo as well. "Their" is referring to the wind farms (because anything else mentioned in the sentence can't have any "energy production")
User avatar
AjiteshArun
User avatar
Major Poster
Joined: 15 Jul 2015
Last visit: 18 Nov 2025
Posts: 5,949
Own Kudos:
Given Kudos: 732
Location: India
GMAT Focus 1: 715 Q83 V90 DI83
GMAT 1: 780 Q50 V51
GRE 1: Q170 V169
Expert
Expert reply
GMAT Focus 1: 715 Q83 V90 DI83
GMAT 1: 780 Q50 V51
GRE 1: Q170 V169
Posts: 5,949
Kudos: 5,080
Kudos
Add Kudos
Bookmarks
Bookmark this Post
gvij2017
Hello all,

I agree with all explanation but something is changed in this thread which is different from given question.
Look at "to increasing" in underlined portion. As much as I know this is totally disastrous use of infinitive.

Where am I wrong?
This reply is a little late, but just in case you or anyone else has the same question:

... to raise renewable power to increasing percentages of their....

The second to is not an infinitive marker. Increasing is an adjective (for percentages). Read it as

raise X to Y, where X and Y are both noun phrases.
User avatar
GDT
Joined: 02 Jan 2020
Last visit: 18 Sep 2020
Posts: 246
Own Kudos:
Given Kudos: 477
Posts: 246
Kudos: 117
Kudos
Add Kudos
Bookmarks
Bookmark this Post
(A) has been a combination of federal tax incentives and state mandates requiring utilities to raise renewable power to increasing percentages of theirCORRECT a combination - is singular so has is correct requiring modifies combination

(B) have been combinations of federal tax incentives and state mandates requiring utilities to raise renewable power to increasing percentages of theirhave is not correct as we are referring to a combination which is singular

(C) has been a combination of federal tax incentives and state mandates that require utilities to raise renewable power to an increasing percentage of itsthough use of has is correct, use of that is not because it refers only to state mandates but should refer to the combination

(D) have been a combination of federal tax incentives and state mandates that require utilities to raise renewable power to increasing percentages of theirsame problem of have and that as noted previously

(E) has been a combination of federal tax incentives and of state mandates requiring utilities to raise renewable power to increasing percentages of itsits refers to utilities which are plural and so, their should be used
User avatar
BlueCrab
Joined: 26 Feb 2022
Last visit: 25 Mar 2024
Posts: 26
Own Kudos:
Given Kudos: 72
Location: India
Schools: ISB '25 (A)
Products:
Schools: ISB '25 (A)
Posts: 26
Kudos: 5
Kudos
Add Kudos
Bookmarks
Bookmark this Post
BillyZ

Difficulty Level: 750-800
Tricky Question


The primary catalyst fueling the rapid spread of wind farms across the country – from offshore platforms along the coasts through the vast deserts and plains – has been a combination of federal tax incentives and state mandates requiring utilities to raise renewable power to increasing percentages of their overall energy production.

(A) has been a combination of federal tax incentives and state mandates requiring utilities to raise renewable power to increasing percentages of their

(B) have been combinations of federal tax incentives and state mandates requiring utilities to raise renewable power to increasing percentages of their

(C) has been a combination of federal tax incentives and state mandates that require utilities to raise renewable power to an increasing percentage of its

(D) have been a combination of federal tax incentives and state mandates that require utilities to raise renewable power to increasing percentages of their

(E) has been a combination of federal tax incentives and of state mandates requiring utilities to raise renewable power to increasing percentages of its

Primary catalyst is singular so we can eliminate options starting with ‘have’ i.e. B & D
…require that.. is incorrect here so C is out
E has an unnecessary ‘and of state mandates’.
Hence A.

Hope it helps :)
   1   2 
Moderators:
GMAT Club Verbal Expert
7443 posts
GMAT Club Verbal Expert
231 posts
189 posts