From hand to mouth means with just enough money or food to survive. 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: From hand to mouth can refer to a situation involving with just enough money or food to survive.
• Story example: A writer may use From hand to mouth when describing a situation involving with just enough money or food to survive.
• Exam example: When a sentence contains From hand to mouth, choose the meaning “with just enough money or food to survive.”