Last visit was: 19 Nov 2025, 01:42 It is currently 19 Nov 2025, 01:42
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
singh_satya
Joined: 20 May 2004
Last visit: 04 Jan 2008
Posts: 60
Own Kudos:
337
 [133]
Location: USA
Posts: 60
Kudos: 337
 [133]
13
Kudos
Add Kudos
117
Bookmarks
Bookmark this Post
Most Helpful Reply
User avatar
sayantanc2k
Joined: 14 Dec 2013
Last visit: 09 Dec 2022
Posts: 2,393
Own Kudos:
15,523
 [30]
Given Kudos: 26
Location: Germany
Schools:
GMAT 1: 780 Q50 V47
WE:Corporate Finance (Pharmaceuticals and Biotech)
Expert
Expert reply
Schools:
GMAT 1: 780 Q50 V47
Posts: 2,393
Kudos: 15,523
 [30]
16
Kudos
Add Kudos
13
Bookmarks
Bookmark this Post
User avatar
sayantanc2k
Joined: 14 Dec 2013
Last visit: 09 Dec 2022
Posts: 2,393
Own Kudos:
15,523
 [11]
Given Kudos: 26
Location: Germany
Schools:
GMAT 1: 780 Q50 V47
WE:Corporate Finance (Pharmaceuticals and Biotech)
Expert
Expert reply
Schools:
GMAT 1: 780 Q50 V47
Posts: 2,393
Kudos: 15,523
 [11]
6
Kudos
Add Kudos
5
Bookmarks
Bookmark this Post
User avatar
ExpertsGlobal5
User avatar
Experts' Global Representative
Joined: 10 Jul 2017
Last visit: 18 Nov 2025
Posts: 5,195
Own Kudos:
4,762
 [4]
Given Kudos: 43
Location: India
GMAT Date: 11-01-2019
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 5,195
Kudos: 4,762
 [4]
1
Kudos
Add Kudos
2
Bookmarks
Bookmark this Post
Dear Friends,

Here is a detailed explanation to this question-
singh_satya
Research during the past several decades on the nature of language and the processes that produce and make it understandable has revealed great complexity instead of underlying simplicity.

(A) that produce and make it understandable has revealed great complexity instead of underlying simplicity
(B) of producing and understanding it have revealed not underlying simplicity but great complexity
(C) by which it is produced and understood has revealed not underlying simplicity but great complexity
(D) by which it is produced and understood have revealed great complexity rather than underlying simplicity
(E) by which one produces and understands it have revealed great complexity instead of underlying simplicity

Concepts tested here: Subject-Verb Agreement + Awkwardness/Redundancy

A: Correct. This answer choice correctly refers to the singular noun "Research" with the singular verb phrase "has reveled". Further, Option A is free of awkwardness or redundancy.

B: This answer choice incorrectly refers to the singular noun "Research" with the plural verb phrase "have revealed". Further, Option B uses the needlessly indirect phrase "not underlying simplicity but great complexity", leading to awkwardness.

C: Trap. This answer choice uses the passive and needlessly wordy construction "by which it is produced and understood" and the needlessly indirect phrase "not underlying simplicity but great complexity", leading to awkwardness and redundancy.

D: Trap. This answer choice incorrectly refers to the singular noun "Research" with the plural verb phrase "have revealed". Further, Option D uses the passive and needlessly wordy construction "by which it is produced and understood", leading to awkwardness and redundancy.

E: This answer choice incorrectly refers to the singular noun "Research" with the plural verb phrase "have revealed". Further, Option E uses the passive and needlessly wordy construction "by which one produces and understands it", leading to awkwardness and redundancy.

Hence, A is the best answer choice.

All the best!
Experts' Global Team
General Discussion
User avatar
syamee_u
Joined: 11 May 2004
Last visit: 16 Jun 2010
Posts: 138
Own Kudos:
101
 [1]
Posts: 138
Kudos: 101
 [1]
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
singh_satya
Research during the past several decades on the nature of language and the processes that produce and make it understandable has revealed great complexity instead of underlying simplicity.
(A) that produce and make it understandable has revealed great complexity instead of underlying simplicity
(B) of producing and understanding it have revealed not underlying simplicity but great complexity
(C) by which it is produced and understood has revealed not underlying simplicity but great complexity
(D) by which it is produced and understood have revealed great complexity rather than underlying simplicity
(E) by which one produces and understands it have revealed great complexity instead of underlying simplicity


A or C.
Explain plz
Thanks
Satya


sorry ..

my choice :D 50 seconds

processes <by which it is produced and understood > + have should come. Not "HAS"

(A) that produce and make it understandable has revealed great complexity instead of underlying simplicity

in this choice "it" is not correct in pronoun number as noun x and y. it should be them. however meaning also not correct

(B) of producing and understanding it have revealed not underlying simplicity but great complexity

in this choice "it" is not correct in pronoun number

(C) by which it is produced and understood has revealed not underlying simplicity but great complexity

singular verb "has" not matching with plural subject processes

(E) by which one produces and understands it have revealed great complexity instead of underlying simplicity

awkward.

comments PLZ.
avatar
stolyar
Joined: 03 Feb 2003
Last visit: 06 May 2014
Posts: 1,012
Own Kudos:
1,850
 [5]
Posts: 1,012
Kudos: 1,850
 [5]
3
Kudos
Add Kudos
2
Bookmarks
Bookmark this Post
syamee_u
singh_satya
Research during the past several decades on the nature of language and the processes that produce and make it understandable has revealed great complexity instead of underlying simplicity.
(A) that produce and make it understandable has revealed great complexity instead of underlying simplicity
(B) of producing and understanding it have revealed not underlying simplicity but great complexity
(C) by which it is produced and understood has revealed not underlying simplicity but great complexity
(D) by which it is produced and understood have revealed great complexity rather than underlying simplicity
(E) by which one produces and understands it have revealed great complexity instead of underlying simplicity


A or C.
Explain plz
Thanks
Satya

sorry ..

my choice :D 50 seconds

processes <by which it is produced and understood > + have should come. Not "HAS"

(A) that produce and make it understandable has revealed great complexity instead of underlying simplicity

in this choice "it" is not correct in pronoun number as noun x and y. it should be them. however meaning also not correct

(B) of producing and understanding it have revealed not underlying simplicity but great complexity

in this choice "it" is not correct in pronoun number

(C) by which it is produced and understood has revealed not underlying simplicity but great complexity

singular verb "has" not matching with plural subject processes

(E) by which one produces and understands it have revealed great complexity instead of underlying simplicity

awkward.

comments PLZ.


The subject here is RESEARCH (a singular). Therefore, we need verb HAS, which is in A and C. The other options are out.

Between A and C, I, however, opt for A.
"processes by which it is ... understood" does not seem to be as clear as "processes that produce and make it understandable "
User avatar
Bhai
Joined: 16 Oct 2003
Last visit: 18 Jun 2007
Posts: 1,018
Own Kudos:
843
 [2]
Posts: 1,018
Kudos: 843
 [2]
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Got it A,

In C, Research ...........has revealed not underlying simplicity but great complexity. I think it should be has not revealed .......
User avatar
chunjuwu
Joined: 26 Apr 2004
Last visit: 01 Aug 2005
Posts: 541
Own Kudos:
4,818
 [10]
Location: Taiwan
Posts: 541
Kudos: 4,818
 [10]
9
Kudos
Add Kudos
Bookmarks
Bookmark this Post
singh_satya
Research during the past several decades on the nature of language and the processes that produce and make it understandable has revealed great complexity instead of underlying simplicity.
(A) that produce and make it understandable has revealed great complexity instead of underlying simplicity
(B) of producing and understanding it have revealed not underlying simplicity but great complexity
(C) by which it is produced and understood has revealed not underlying simplicity but great complexity
(D) by which it is produced and understood have revealed great complexity rather than underlying simplicity
(E) by which one produces and understands it have revealed great complexity instead of underlying simplicity

Satya


A-HA, I got it why not C. A and C are two kind of meaning.

Guys, reviewed A more carefully.

(A)..... process that produce(watch out! there is no objective) and make it(research) understandable.
There are two actions; one is produce, and the other is make it understandable. (we don't know produce what? )

However, in (C). Passive voice is ambiguous
(.... by which it is produced and understood ..... )

(is preposition by a common preposition or not ?)

we cannot make sure preposition by belongs which verb? ( be produced by? be understood by? or both)

I hope you understand what I'm talking about.
User avatar
duttsit
Joined: 22 Aug 2005
Last visit: 19 Feb 2016
Posts: 494
Own Kudos:
700
 [3]
Location: CA
Posts: 494
Kudos: 700
 [3]
1
Kudos
Add Kudos
2
Bookmarks
Bookmark this Post
While crawling web about this SC i found following information on usage of "rather than". I would recommend reading it:

The phrase rather than consists of an adverb and a conjunction and often means "and not," as in I decided to skip lunch rather than eat in the cafeteria again. It is grammatically similar to sooner than in that it is used with a "bare" infinitive—an infinitive minus to: I would stay here and eat flies sooner than go with them.

Rather than can also be used with nouns as a compound preposition meaning "instead of": I bought a mountain bike rather than a ten-speed. But some people object to this use, insisting that than should be used only as a conjunction. They therefore object to constructions in which rather than is followed by a gerund, as in Rather than buying a new car, I kept my old one.

In some cases, however, rather than can only be followed by a gerund and not by a bare infinitive. If the main verb of the sentence has a form that does not allow parallel treatment of the verb following rather than, you cannot use a bare infinitive, and you must use a gerund. This is often the case when the main verb is in a past tense or has a participle. Thus, you must say The results of the study, rather than ending (not end or ended) the controversy, only added to it. If the main verb was in the present tense (add), you could use the bare infinitive end.

Curiously, when the rather than construction follows the main verb, it can use other verb forms besides the bare infinitive. Thus you can say The results of the study added to the controversy rather than ended it.

The overriding concern in all of this should be to avoid faulty parallels, as in sentences like Rather than buy a new car, I have kept my old one and Rather than take a cab, she is going on foot.

Clearly, it is grammatically defensible to follow rather than with a gerund, but if you prefer to avoid the controversy, use instead of with gerunds.


usage of "instead of" to compare two parallel nouns is correct here in A.(see bold part)
User avatar
misterJJ2u
Joined: 29 Nov 2006
Last visit: 01 Oct 2009
Posts: 171
Own Kudos:
1,258
 [3]
Location: Orange County, CA
Posts: 171
Kudos: 1,258
 [3]
2
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
Quote:
Research during the past several decades on the nature of language and the processes that produce and make it understandable has revealed great complexity instead of underlying simplicity.

(A) that produce and make it understandable has revealed great complexity instead of underlying simplicity
(B) of producing and understanding it have revealed not underlying simplicity but great complexity
(C) by which it is produced and understood has revealed not underlying simplicity but great complexity
(D) by which it is produced and understood have revealed great complexity rather than underlying simplicity
(E) by which one produces and understands it have revealed great complexity instead of underlying simplicity


Vote: A

Topic of sentence is focused around "research" (singular). Research..."HAS"...

Choices boiled down to A and C.

I'd go wtih A over C b/c A is more concise and C is awkwardly worded.
Choice A: Research...has revealed X instead of Y.
Choice C: Research...has revealed not X but Y.
User avatar
GMATBootcamp
Joined: 26 Sep 2009
Last visit: 23 Aug 2010
Posts: 33
Own Kudos:
48
 [1]
Given Kudos: 4
Location: Los Angeles
Posts: 33
Kudos: 48
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
The subject of the sentence is "research," all of the other fluff in between can be ignored.

Since "research" is singular, the verb tense must also be singular. Answers B, D, and E all use the plural verb "have," so eliminate answers B, D, and E

Between answers A and C, "by which it..." is wordy and awkward construction.

I would pick answer A
User avatar
ChrisLele
User avatar
Magoosh GMAT Instructor
Joined: 28 Nov 2011
Last visit: 27 Jul 2020
Posts: 295
Own Kudos:
Given Kudos: 2
Expert
Expert reply
Posts: 295
Kudos: 4,793
Kudos
Add Kudos
Bookmarks
Bookmark this Post
'Instead' is used as an adverb and therefore has to modify some verb.

Instead of walking to school, they rode the bus.



In the question, we have two nouns (simplicity, complexity). Thus we want to use the construction not 'A' but 'B'.

Therefore that leaves us with (C).
User avatar
egmat
User avatar
e-GMAT Representative
Joined: 02 Nov 2011
Last visit: 18 Nov 2025
Posts: 5,108
Own Kudos:
32,884
 [1]
Given Kudos: 700
GMAT Date: 08-19-2020
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 5,108
Kudos: 32,884
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hi,

Received a PM to comment on the numnber of the subject of this particular problem.

Research during the past several decades on the nature of language and the processes that produce and make it understandable has revealed great complexity instead of underlying simplicity.

The subject of this sentence is "Research". Here we have a huge noun phrase "Research during the past several decades on the nature of language and the processes" where everything after "Research" lies in prepositional phrase and hence cannot be the subject. So the head of this long phrase "Research" is the subject which is singular in number. Plural for "researches". Hence, the singular verb "has revealed" agrees in number with the singular subject in the original sentence.

Hope this helps. :)
Thanks.
Shraddha
User avatar
daagh
User avatar
Major Poster
Joined: 19 Feb 2007
Last visit: 16 Oct 2020
Posts: 5,264
Own Kudos:
42,418
 [2]
Given Kudos: 422
Status: enjoying
Location: India
WE:Education (Education)
Expert
Expert reply
Posts: 5,264
Kudos: 42,418
 [2]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I haven’t been able to go through all the eight pages of discussion on the topic. But judging from the last few posts, I could see that the discussion has been mostly on idiomatism, SV mismatch etc; But has it been dissected from the pronoun ambiguity angle as well? What would ‘it’ represent? Is it the research, as it is the subject according some, while it could as well stand for the language itself? Or can it replace the nature (in the nature of language)?
Of course, I can easily give arm-chair advice that, since all the five choices have the pronoun problem, we can ignore it altogether and focus on other areas. After all, isn’t a 1000-series problem, an anathema to GMAT? But what is the reality?
User avatar
Bluelagoon
Joined: 21 Jan 2010
Last visit: 03 Sep 2015
Posts: 191
Own Kudos:
659
 [2]
Given Kudos: 12
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
singh_satya
Research during the past several decades on the nature of language and the processes that produce and make it understandable has revealed great complexity instead of underlying simplicity.

(A) that produce and make it understandable has revealed great complexity instead of underlying simplicity
(B) of producing and understanding it have revealed not underlying simplicity but great complexity
(C) by which it is produced and understood has revealed not underlying simplicity but great complexity
(D) by which it is produced and understood have revealed great complexity rather than underlying simplicity
(E) by which one produces and understands it have revealed great complexity instead of underlying simplicity

B,D and E are out because the subject is Research(singular) so it requires a singular verb 'has'. Now A and C has a difference in meaning.

C :Research during the past several decades on the nature of language and the processes by which it is produced and understood has revealed not underlying simplicity but great complexity.

Does the processes produce and understand the language. No.

Notice the subtle usage of understandable and understood in A and C.

The process make it understandable , not understand it themselves. A wins.
User avatar
newyork2012
Joined: 22 Sep 2014
Last visit: 23 Apr 2023
Posts: 122
Own Kudos:
Given Kudos: 51
Location: United States (CA)
Posts: 122
Kudos: 51
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Research during the past several decades on the nature of language and the processes that produce and make it understandable has revealed great complexity instead of underlying simplicity.
User avatar
emcheeks
Joined: 28 Jun 2020
Last visit: 22 Dec 2024
Posts: 119
Own Kudos:
Given Kudos: 78
Posts: 119
Kudos: 111
Kudos
Add Kudos
Bookmarks
Bookmark this Post
The usage of by which, at which
INCORRECT: a standard the performance is measured by, the restaurant we ate at (no prep. at the end of any clauses)
CORRECT: a standard by which the performance is measured, the restaurant at which we ate

Back to the problem, C: "nature of language and the processes by which it is produced and understood"

can be translated into: "the nature of language is produced and understood by processes" (note that here "it" can only refer to "nature of language")

this is wrong because it cannot be understood by processes. it is humans who understand the nature of language.
avatar
akshay88
Joined: 02 Apr 2020
Last visit: 17 Nov 2025
Posts: 2
Own Kudos:
Given Kudos: 43
Posts: 2
Kudos: 2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Is the parallelism in (A) correct?

Research during the past several decades on the nature of language and the processes that produce and make it understandable has revealed great complexity instead of underlying simplicity.
(A) that produce and make it understandable has revealed great complexity instead of underlying simplicity
As per my understanding, each element of the list must individually make sense.
..processes that produce has revealed..
..processes that make it understandable.. (this looks correct, but what about the first element)

Any help will be great
egmat
GMATNinja
sayantanc2k
User avatar
Bambi2021
Joined: 13 Mar 2021
Last visit: 23 Dec 2021
Posts: 319
Own Kudos:
Given Kudos: 226
Posts: 319
Kudos: 136
Kudos
Add Kudos
Bookmarks
Bookmark this Post
The use of "instead of" makes no sense. It sounds as if complexity or simplicity are the only outcomes and that they are mutually exclusive. If on the other hand we use "rather than", the meaning seems more reasonable. Then the research might have been expected to reveal "simplicity" but did rather reveal complexity.

Posted from my mobile device
User avatar
DmitryFarber
User avatar
Manhattan Prep Instructor
Joined: 22 Mar 2011
Last visit: 08 Nov 2025
Posts: 3,020
Own Kudos:
8,563
 [2]
Given Kudos: 57
Expert
Expert reply
GMAT Focus 1: 745 Q86 V90 DI85
Posts: 3,020
Kudos: 8,563
 [2]
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bambi2021
Agreed. This is in no way a valid SC problem. The "instead of" part is both illogical and ungrammatical, and the initial part of A doesn't work. There's no object for the word "produce." If we want to say "produce it," with "it" meaning "language," then we can't add "understandable." This would mean "produce it understandable and make it understandable," and that doesn't mean anything.

C is much better, but the comparison at the end still doesn't make sense. Why are we comparing "underlying simplicity" and "great complexity"? The only point of using "underlying" would be to show that this simplicity underlies complexity at some other level, so it just doesn't work to make this contrast.
 1   2   
Moderators:
GMAT Club Verbal Expert
7445 posts
GMAT Club Verbal Expert
234 posts
188 posts