In no uncertain terms means very clearly and directly. 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: In no uncertain terms can refer to a situation involving very clearly and directly.
• Story example: A writer may use In no uncertain terms when describing a situation involving very clearly and directly.
• Exam example: When a sentence contains In no uncertain terms, choose the meaning “very clearly and directly.”