GMAT SC Q39

This topic has expert replies
Source: — Sentence Correction |

User avatar
Legendary Member
Posts: 2663
Joined: Wed Jan 14, 2015 8:25 am
Location: Boston, MA
Thanked: 1153 times
Followed by:128 members
GMAT Score:770

by DavidG@VeritasPrep » Tue Feb 24, 2015 1:06 pm
One of the earliest known birds with a beak and contour feathers, Confuciusornis sanctus, with large clawlike "thumbs" on its wings, which probably helped them to climb up to a launching position for flight.

A. with large clawlike "thumbs" on its wings, which probably helped them to
B. with large clawlike "thumbs" on their wings, which probably helped it to
C. had large clawlike "thumbs" on its wings, which probably helped them
D. had large clawlike "thumbs" on its wings, probably to help it
E. had large clawlike "thumbs" on their wings, probably to help it

Pay attention to the different pronouns in the answer choices. We can choose "on its wings" or "on their wings." The pronoun's antecedent is 'Confuciusornis sanctus,' which is singular, so we want "on its wings." Eliminate B and E. Next, we have another pronoun split "helped them" or "helped it." The pronoun is still referring to Confuciusornis sanctus, so again, we want "it." Eliminate A and C. All that's left is D, which is the answer.
Veritas Prep | GMAT Instructor

Veritas Prep Reviews
Save $100 off any live Veritas Prep GMAT Course

• Page 1 of 1