We must not take anything that does not belong to us.

A sentence has been given in active/passive voice. Out of the four suggested alternatives, select the one which expresses the same sentence in passive/active voice.

Correct. The active verb 'must not take' becomes 'must not be taken' in the passive voice. Let's analyze the original sentence.Subject - we; verb - must not take; object - anything that does not belong to us.When we change an active sentence into a passive sentence, the object of the active verb will become the subject of the passive verb. In this case, the object includes the clause 'that does not belong to us'. However, it does not undergo any change in the passive voice. Only the active verb of the main clause changes in the passive voice.