Select the most appropriate meaning of the given idiom.
Hard nut to crack
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. A problem difficult to solve.
The idiom "hard nut to crack" is used to describe a problem or situation that is very difficult to solve or deal with.
It implies that the issue requires a lot of effort, persistence, or intelligence to overcome.
The other options do not accurately capture the meaning of this idiom.