In the following questions , out of the four alternatives , select the alternative which best expresses the meaning of the idiom/Phrase.
At one's wits end

Options

A. A man of ability
B. At the last moment
C. To get puzzled
D. Undecided controversy

Answer

3

Explanation

At one.s wits end to be so worried by a problem that you do not know what to do next: to get puzzled.
Look at the sentence : Scientists are at their wits end as to why the whale had swum to the shore.