Behind the scenes means happening privately, not in public view. 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: Behind the scenes can refer to a situation involving happening privately, not in public view.
• Story example: A writer may use Behind the scenes when describing a situation involving happening privately, not in public view.
• Exam example: When a sentence contains Behind the scenes, choose the meaning “happening privately, not in public view.”