Above board means honest, open, and legal. 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: Above board can refer to a situation involving honest, open, and legal.
• Story example: A writer may use Above board when describing a situation involving honest, open, and legal.
• Exam example: When a sentence contains Above board, choose the meaning “honest, open, and legal.”