Do more harm than good means cause more damage than benefit. 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: Do more harm than good can refer to a situation involving cause more damage than benefit.
• Story example: A writer may use Do more harm than good when describing a situation involving cause more damage than benefit.
• Exam example: When a sentence contains Do more harm than good, choose the meaning “cause more damage than benefit.”