Answer:
The correct answer is (A) "wasn't he"
Step-by-step explanation:
This is a question about the subject of a sentence. The sentence "He used to be married to an actress" has an impersonal pronoun "He" which is the subject of the sentence. The other options are negative statements with the auxiliary verbs "was" and "wasn't". The negative auxiliary verb "wasn't" should be used as it matches the main verb "used to be".
Therefore, the answer is A. "wasn't he".