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Sixty-five million years ago, according to some scientists,

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Sixty-five million years ago, according to some scientists, an asteroid bigger than Mount Everest slammed into North America, **which, causing plant and animal extinctions, marks** the end of the geologic era known as the Cretaceous Period.
A. which, causing plant and animal extinctions, marks
B. which caused the plant and animal extinctions marking
C. and causing plant and animal extinctions that mark
D. an event that caused plant and animal extinctions, and it marks
E. an event that caused the plant and animal extinctions that mark

2 Answers

guptaneha.ei
0
Rachit Tiwari Pronoun ambiguity is not tested on the GMAT. It will never be a make or break in selecting any answer choice. So for example a sentence such as "Rachit walked with Vineet, untill he was exhausted." is not going to be something you should be bothered about from the point of view of ambiguity in reference. You should look at other errors to eliminate the choices.
answered Jul 4, 2016 by Beginner (1 point)
kapil_1255
0
D has pronoun ambiguity. "It" can refer to more than one antecedent
answered Jul 4, 2016 by Beginner (16 points)
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