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:

They failed in their attempt to repair the demolished portion of that building.

A for their attempt to repair

B in their attempting to repair

C with their attempt to repair

D in their attempt for repairs

E No correction required

ANS:E - No correction required

No answer description is available.