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:

It is always better to make people realise the importance of discipline than to impose them on it.

A impose it with them

B impose them with it

C imposing them on it

D impose it on them

E No correction required

ANS:D - impose it on them

No answer description is available.