Keep the wolf from the door means earn enough to avoid hunger or poverty. 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: Keep the wolf from the door can refer to a situation involving earn enough to avoid hunger or poverty.
• Story example: A writer may use Keep the wolf from the door when describing a situation involving earn enough to avoid hunger or poverty.
• Exam example: When a sentence contains Keep the wolf from the door, choose the meaning “earn enough to avoid hunger or poverty.”