If I had not caught him, he ____. (according to the conditional sentences).

Correct Answer: A. Would have been drowned

The Correct Sentence would be: If I had not caught him, he Would have been drowned

This is an example of a third conditional sentence, which expresses a hypothetical situation in the past and its imagined result. In this case, the sentence suggests that if you had not caught him, he would have been drowned. The correct form of the verb to use in this context is “would have been drowned.”