Right Answer is:
The given sentence is in active voice. It is of simple present tense. The structures for active/passive voices are:
Active: Subject + verb (“s“ or “es” with singular noun) + object…
Passive: Object + Is/are/am + verb (IIIrd form) + by + subject…
So, based on the above structures, we can convert the given sentence into passive voice as: The innocent commoners are victimized by the police.
Hence, option C is the correct answer.