Select the option that expresses the given sentence in active voice.
Let the door be closed.

Correct option is C

The correct active voice of the given sentence is Close the door.
Rules of Conversion from Passive to Active Voice:
· Passive Voice Structure: Let + object + be + past participle (V3)
· Active Voice Structure: Imperative sentence (verb in base form without subject)
Explanation:
· "Let the door be closed" is a passive imperative sentence where an action is suggested.
· To convert it into active voice, we use the base form of the verb directly, i.e., "Close the door."
Structure Comparison:
Passive: Let + object + be + V3 → Let the door be closed.
Active: Base verb (imperative form) → Close the door.
Thus, the correct answer is (c) Close the door.