In the following questions, four alternatives are given for the Idiom/ Phrase printed in bold in the sentence. Choose the alternative which best expresses the meaning of the Idiom/Phrase.
At his wit's end, he turned to his old trade.

Options

A. Overjoyed
B. After careful thinking
C. Confidently
D. Not knowing what to do

Answer

D

Explanation

At One.s wit.s end = to be so worried by a problem that you do not know what to do next.