Tissue samples taken from the fossilized skeleton of an unidentified

Question

Tissue samples taken from the fossilized skeleton of an unidentified organism twice the size of a modern elephant  has been tested to be 200 million years old and therefore is  evidence that the temporal distribution of megafauna was much wider than previously believed.

A. has been tested to be 200 million years old and therefore is

B. has been tested at 200 million years old and therefore

C. have been tested to be 200 million years old and therefore are

D. have been tested as being 200 million years old and therefore

E. have been tested at 200 million years old and therefore are

daagh · Answer

Tissue samples taken from the fossilized skeleton of an unidentified organism twice the size of a modern elephant  has been tested to be 200 million years old and therefore is  evidence that the temporal distribution of megafauna was much wider than previously believed.

A. has been tested to be 200 million years old and therefore is --- ---tissue samples and has been- is SV number error

B. has been tested at 200 million years old and therefore – The same error as in A.

C. have been tested to be 200 million years old and therefore are ---  The correct choice.

D. have been tested as being 200 million years old and therefore ---The clause that follows -and therefore - must be an independent clause with a verb of its own. On the other hand, we have is just a phrase without the verb for the elided subject ‘tissue samples’. – Wrong

E. have been tested at 200 million years old and therefore are dated at is not the correct idiom. – wrong

arora1 · Answer

daagh : Are these questions with tag "Verbal review", official questions by GMAC? I see very little traction on these questions compared with questions having the tag "Official Guide"

daagh · Answer

Not that way; sometimes there are some low level questions to induce many to participate. This is a simple idiom based questions and hence may not interest serious students

arora1 · Answer

Thanks  daagh .
I see nearly 300+ questions with "Verbal Review 2018" tag and difficulty "700+" tag. This makes it diffucult to filter out questions.
Are all these questions truly provided by GMAC?

ajaygaur319 · Answer

A.  has  been tested to be 200 million years old and therefore is -  SV Agreement error 
B.  has  been tested at 200 million years old and therefore -  SV Agreement error 
C. have been  tested to be  200 million years old and therefore are -   tested/dated at  is preferred in such scenarios 
D. have been tested  as being  200 million years old and therefore -  Awkward 
E. have been tested at 200 million years old and therefore are -  Correct Idiom and sentence makes perfect sense

(E)  is the correct choice.

Similar Question:  https://gmatclub.com/forum/rock-samples-taken-from-the-remains-of-an-asteroid-about-twice-the-213736.html

gmatprepper94111 · Answer

E is not correct. That is a bizarre turn of phrase. Even if an official guide uses that in its answer key, that's an appalling abuse of English.

ExpertsGlobal5 · Answer

Hello  gmatprepper94111 ,

We hope this finds you well.

To provide a bit of clarity here, the correct answer choices on the GMAT may often sound quite awkward; remember, stylistic concerns are the least important factor in judging answer choices; style and conciseness should only be taken into account in order to differentiate between two otherwise error free answer choices.

We hope this helps.
All the best!
Experts' Global Team

Tissue samples taken from the fossilized skeleton of an unidentified

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GMAT Sentence Correction (SC - EA only) Questions

Tissue samples taken from the fossilized skeleton of an unidentified

Prep Toolkit

615 to 715 in 15 Days (Ria's Strategies)

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My Rewards