Correct option is C
The most appropriate idiom to fill in the blank is "beating around the bush."
· Beating around the bush: This idiom means avoiding the main topic or not speaking directly about the issue. It suggests that someone is being indirect or evasive.
· Example: Instead of answering the question directly, the politician kept beating around the bush, trying to avoid giving a clear answer.
The other options do not fit the context of avoiding or not directly answering a question:
· Crying over spilt milk: Complaining about something that cannot be changed.
· Pointing at his laurels: Resting on past achievements.
· Spilling the bean: Revealing secret information.