A two-way street means a situation where both sides must give or act. 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: A two-way street can refer to a situation where both sides must give or act.
• Story example: A writer may use A two-way street when describing a situation where both sides must give or act.
• Exam example: When a sentence contains A two-way street, choose the meaning “a situation where both sides must give or act.”