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:

He is too important for tolerating any delay.

A to tolerate

B to tolerating

C at tolerating

D with tolerating

E No correction required

ANS:A - to tolerate

No answer description is available.