Idioms and Phrases - Verbal and Reasoning

In the following questions four alternatives are given for the idiom/phraseitalicised and underlinedin the sentence. Choose the alternative which best expresses the meaning of idiom/phrase.
Q1:

The time is running out, you must look sharp.

A be careful

B make haste

C be punctual

D be sensible

ANS:B - make haste

No answer description is available.