Fall on deaf ears means be ignored. This answer is correct because the expression has a fixed figurative meaning in English. In an SSC idiom question, students should match the whole phrase with its accepted meaning rather than translate each word separately.

• Classroom example: Fall on deaf ears can refer to a situation involving be ignored.
• Story example: A writer may use Fall on deaf ears when describing a situation involving be ignored.
• Exam example: When a sentence contains Fall on deaf ears, choose the meaning “be ignored.”