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Idiom?

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Idiom?

by sq720 » Thu Apr 30, 2009 11:57 am
20. In an effort improve the quality of patient care, Dr. Lydia Temoscho is directing one of several clinical research projects that seek to determine the extent that psychological counseling helps to supplement the medical treatment of serious disease.
(A) seek to determine the extent that psychological counseling helps to supplement
(B) seek to determine how helpful psychological counseling is in supplementing
(C) seeks to determine how helpful psychological counseling is to supplement
(D) seeks to determine to what extent psychological counseling is a help in supplementing
(E) seeks to determine the extent that psychological counseling is helpful in supplementing

ans.) B
Why not A
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by asdf29 » Thu Apr 30, 2009 1:27 pm
In (A), "to supplement" is redundant because of the extent that ... helps. This is not true in (B). So, (A) is not as concise as (B).
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by GMAT Kolaveri » Thu Apr 26, 2012 6:54 am
(A) seek to determine the extent that psychological counseling helps to supplement
(B) seek to determine how helpful psychological counseling is in supplementing
(C) seeks to determine how helpful psychological counseling is to supplement
(D) seeks to determine to what extent psychological counseling is a help in supplementing
(E) seeks to determine the extent that psychological counseling is helpful in supplementing

That restricts/modifies projects which is plural. Hence we have to use seek instead of seeks.
A: is awkward
AO: B
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