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:

You need not come unless you want to.

A You don't need to come unless you want to

B You come only when you want to

C You come unless you don't want to

D You needn't come until you don't want to

E No correction required

ANS:A - You don't need to come unless you want to

No answer description is available.