gmatmachoman wrote:thephoenix wrote:Experts are working to undertand why the disruptions, which occurred an hour before the blackout reached its peak, were not contained, allowing a cascade of power system shutdowns stretching from Michigan to New Yourk City and into Canada.
A. were not contained, allowing
B. was not contained, allowing
C. were not contained, which allowed
D. were not contained to allow
E. were not contained, a failure that allowed
Phenox,I see whole lot of issues in the Sentence construction.....Culd u let us the source?
reply2spg Posted: Fri Mar 12, 2010 11:16 am
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what is the source....(other than Gmat club)
the source mentioned in gmat club is ARCO
here is the OA and OE posted by one of their forum member
OA = E.
OE (ARCO CAT1): The correct answer is (E). The problem with the original sentence is that "allowing" needs to modify something, but there is no word to which it is connected. The reader is, therefore, left wondering what it is that allowed the cascade of shutdowns. The answer is "a failure", but that word doesn't appear in the original sentence.
(E) Corrects this omission.
(B) Is wrong because "was" fails to agree with the plural "disruptions".
(C) Suffers from the same weakness as the original. The relative pronoun "which" needs to refer to a noun, but there is no "failure" or similar word in the original to be the antecedent.
(D) Makes the error in the original more noticeable.
well i also went for E for some gud reasons ........
i guess ARCO is a reliable source
