Correct Answer: Who inaugurated the new auditorium?

Solution : The fourth option is the correct choice.

The active voice is a type of sentence or clause in which the subject performs the action. It's a more direct and straightforward way of expressing ideas. In an active sentence, the subject is the doer of the action, and the object is the receiver of the action.

The structure of the active voice sentence is: "Subject + verb + object?"

Therefore, the correct answer will be: " Who inaugurated the new auditorium?"