Select the option that expresses the given sentence in passive voice.
An unexpected call disturbed Maria terribly which compelled her to stop the performance.

Correct option is A

The correct passive voice is (a) Maria was disturbed terribly by an unexpected call which compelled her to stop the performance.
Active Voice: When the subject of the sentence performs the action, the sentence is in active voice.
Passive Voice: When the subject of the sentence receives the action, the sentence is in passive voice.
Explanation:
· Active: An unexpected call disturbed Maria terribly...
· Passive: Maria was disturbed terribly by an unexpected call...
Structure Used:
· Simple past active → was/were + V3
· Clause “which compelled her...” remains unchanged, as it is a result clause, not the main verb.
Grammatical rule used:
· Passive voice of simple past: was/were + past participle
· Example: The news shocked him → He was shocked by the news.