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lying facilitates interactions

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lying facilitates interactions

by GmatGreen » Tue Jan 21, 2014 9:02 am
While recognizing that lying often facilitates social interactions, psychiatrists are seeking to determine when they become destructive and which kinds of mental problems they can signal.

(A) they become destructive and which kinds of mental problems they can signal

(B) they become destructive and the mental problems that are signaled by them

(C) it becomes destructive and what are the kinds of mental problems they signal

(D) it becomes destructive and the mental problems that are signaled by it

(E) it becomes destructive and which kinds of mental problems it can signal
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by Patrick_GMATFix » Tue Jan 21, 2014 9:23 am
The sentence discusses "lying", so we can get rid of those choices that illegally refer to it with plural pronoun "they" (A, B, and C). Parallel structures are also tested; Psychologists are seeking to determine X and Y, where X and Y should be parallel.

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by theCodeToGMAT » Tue Jan 21, 2014 10:19 am
While recognizing that lying often facilitates social interactions, psychiatrists are seeking to determine when they become destructive and which kinds of mental problems they can signal.

(A) they become destructive and which kinds of mental problems they can signal
INCORRECT; we need singular "it"

(B) they become destructive and the mental problems that are signaled by them
INCORRECT; we need singular "it"

(C) it becomes destructive and what are the kinds of mental problems they signal
INCORRECT; we need singular "it"

(D) it becomes destructive and the mental problems that are signaled by it
INCORRECT; passive.

(E) it becomes destructive and which kinds of mental problems it can signal

However, isn't "which kinds" awkward? "what kinds" looks better..
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by GMATGuruNY » Tue Jan 21, 2014 11:24 am
While recognizing that lying often facilitates social interactions, psychiatrists are seeking to determine when they become destructive and which kinds of mental problems they can signal.
A. they become destructive and which kinds of mental problems they can signal
B. they become destructive and the mental problems that are signaled by them
C. it becomes destructive and what are the kinds of mental problems they signal
D. it becomes destructive and the mental problems that are signaled by it
E. it becomes destructive and which kinds of mental problems it can signal
In A, B and C, they lacks a clear antecedent. Eliminate A, B and C.

In D, when it becomes and the mental problems are not parallel. AND must connect PARALLEL FORMS. Eliminate D.

The correct answer is E.

It should be noted that D changes the intended meaning.
Whereas the original sentence discusses mental problems that lying CAN signal, D discusses mental problems that ARE signaled by lying.
Another reason to eliminate D.
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by [email protected] » Tue Jan 21, 2014 1:58 pm
Hi GmatGreen,

This SC essentially comes down to 2 rules (the first of which is obvious from the answer choices):

1) Pronoun: the word "lying" is a singular subject and requires the singular pronoun "it." Eliminate A, B and C (notice the second pronoun is incorrect).

2) 2-part Parallelism: In the remaining answers, the first part of the 2-part phrase is "it becomes destructive"; the second part of the phrase must match the format/structure of the first. Eliminate D.

Final Answer: E

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by aditya8062 » Tue Dec 30, 2014 11:25 pm
thanks Guru
i have one query regarding option E
E says: it becomes destructive and which kinds of mental problems it can signal
i remember at one place you have written that if one part across AND is in the form of "question" then the other part across "AND" should be in "question" FORM only . in option E the first part is in the "question" form : "when it becomes destructive" SO the other part should have been "which kinds of mental problems can it signal" AND NOT "which kinds of mental problems it can signal"

please clarify
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by GMATGuruNY » Tue Dec 30, 2014 11:38 pm
aditya8062 wrote:in option E the first part is in the "question" form : "when it becomes destructive"
when it becomes destructive is not phrased as a question.
The question form would be as follows:
When DOES it become destructive?
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by Tmoni26 » Wed Jan 21, 2015 2:42 am
Hello,

I know this must be old but I eliminated Answer choice E because of the "which" word in the sentence. I thought which was suppose to modify the "noun" immediately preceding it.


Thanks for your replies!
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by GMATGuruNY » Wed Jan 21, 2015 6:11 am
Tmoni26 wrote:Hello,

I know this must be old but I eliminated Answer choice E because of the "which" word in the sentence. I thought which was suppose to modify the "noun" immediately preceding it.


Thanks for your replies!
A DETERMINER is a modifier that serves to indicate PART OF A GROUP.
Examples of determiners: this, these and which.
John wants THIS BOOK.
Conveyed meaning:
John does not want ALL books, he wants only THIS book.
John wants THESE BOOKS.
Conveyed meaning:
John does not want ALL books, he wants only THESE books.
Mary does not know WHICH BOOKS John wants.
Conveyed meaning:
Mary knows that John does not want ALL books, but she does not know WHICH books John wants.

E: Psychiatrists are seeking to determine WHICH kinds of mental problems lying can signal.
Here, which serves not as a pronoun but as a determiner.
Conveyed meaning:
Lying does not signal ALL kinds of mental problems, so psychiatrists are seeking to determine WHICH kinds of mental problems it CAN signal.
When which serves as a determiner, it will not have an antecedent and thus will not refer to a preceding noun.
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