Mark the letter A, B, C, or D on...

Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
He didn't notice anything. We might have been in trouble otherwise.

A. If he noticed anything, we would be in trouble.

B. If he hadn't noticed anything, we couldn't have been in trouble.

C. If he had noticed anything, we could have been in trouble.

D. If he noticed anything, we could have been in trouble.