Sentence Correction - Verbal and Reasoning

Directions to SolveWhich of phrases given below each sentence should replace the phrase printed inboldtype to make the grammatically correct? If the sentence is correct as it is, mark 'E' as the answer.
Q1:

The research study is an eye-opener and attempts to acquaint us with the problems of poor nations.

A attempted to acquaint

B attempts at acquainting

C attempt to acquaint

D attempting to acquaint

E No correction required

ANS:B - attempts at acquainting

No answer description is available.