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climatic shifts

Expert replies
by sairamGmat » Sat Aug 07, 2010 1:33 am
Climatic shifts are so gradual as to be indistinguishable at first from ordinary fluctuations in the weather.
(A) so gradual as to be indistinguishable
(B) so gradual they can be indistinguishable
(C) so gradual that they are unable to be distinguished
(D) gradual enough not to be distinguishable
(E) gradual enough so that one cannot distinguish them


OA is A . Why is it not C
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Source: — Sentence Correction |

by gmat_perfect » Sat Aug 07, 2010 3:32 am
sairamGmat wrote:Climatic shifts are so gradual as to be indistinguishable at first from ordinary fluctuations in the weather.
(A) so gradual as to be indistinguishable
(B) so gradual they can be indistinguishable
(C) so gradual that they are unable to be distinguished
(D) gradual enough not to be distinguishable
(E) gradual enough so that one cannot distinguish them


OA is A . Why is it not C

C is wrong for the following reasons:

1. Climatic shifts can not be able. Person can be able.
2. He is able to solve the problem.
They are able to be sent to the tour.---NOT correct. A revised sentence should be there.

e.g., They are fit for the tour. etc.

A is correct for two reasons:

1. "So XX as to YY" is the correct idiom.
2. GMAT likes conciseness.

Answer is A.
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by reply2spg » Sat Aug 07, 2010 12:20 pm
Adding further to GMATPERFECT, C is very lengthy. A is short and concise.
Sudhanshu
(have lot of things to learn from all of you)
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