Carry the day means win or succeed in a contest or argument. 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: Carry the day can refer to a situation involving win or succeed in a contest or argument.
• Story example: A writer may use Carry the day when describing a situation involving win or succeed in a contest or argument.
• Exam example: When a sentence contains Carry the day, choose the meaning “win or succeed in a contest or argument.”