Choose the correct meaning of idiom:
Harp on the same string
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. To repeat a single idea endlessly.
Idiom: Harp on the same string
Meaning: To repeat the same point, topic, or argument again and again.
Example: He kept harping on the same string about discipline throughout the meeting.
Hence, the chosen option is correct.