Come a long way means make great progress. 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: Come a long way can refer to a situation involving make great progress.
• Story example: A writer may use Come a long way when describing a situation involving make great progress.
• Exam example: When a sentence contains Come a long way, choose the meaning “make great progress.”