In the teeth of means despite strong opposition or difficulty. 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 the teeth of can refer to a situation involving despite strong opposition or difficulty.
• Story example: A writer may use In the teeth of when describing a situation involving despite strong opposition or difficulty.
• Exam example: When a sentence contains In the teeth of, choose the meaning “despite strong opposition or difficulty.”