aditya8062 wrote:Australian embryologists have found evidence that suggests that the elephant is descended from an aquatic animal, and its trunk originally evolved as a kind of snorkel.
A. that suggests that the elephant is descended from an aquatic animal, and its trunk originally evolved
B. that has suggested the elephant descended from an aquatic animal, its trunk originally evolving
C. suggesting that the elephant had descended from an aquatic animal with its trunk originally evolving
D. to suggest that the elephant has descended from an aquatic animal and its trunk originally evolved
E. to suggest that the elephant is descended from an aquatic animal and that its trunk originally evolved
my doubt : why "has suggested" is wrong in option B
Thanks
Incorrect:
Embryologists have found evidence that has suggested that the elephant is descended from an aquatic animal.
Here,
has suggested (present perfect) implies that -- at some unknown moment in the past -- the evidence suggested that the elephant is descended from an aquatic animal.
But the act of suggesting is not tied to a particular moment in time.
Hence, the use of the present perfect is inappropriate.
Another issue:
The juxtaposition of two verbs in the present perfect (
have found and
has suggested) conveys an unclear sequence.
The OA cleverly avoids these issues by expressing the act of suggesting in the form of an INFINITIVE MODIFIER:
Embryologists have found evidence TO SUGGEST that the elephant is descended from an aquatic animal.
Here, because the act of suggesting is expressed in the form of a modifier, it is not tied to a particular moment in time.
Last edited by
GMATGuruNY on Thu Jan 19, 2017 4:21 am, edited 1 time in total.
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