The correct answer is D. Manna asked Rohan if he has ever sat in a trolley bus.
The sentence “Have you sat in a trolley bus before?” is a present perfect interrogative sentence. It asks about an event that has happened or may have happened in the past. The present perfect tense is used to talk about events that have happened or may have happened at any time up to the present moment. The past participle “sat” is used to form the present perfect tense.
The word “ever” is used to ask about a general experience or event. In this case, Manna
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