Select the correct active form of the given sentence.
Have all the bills been verified by someone?

Correct option is A

The correct active form of the sentence is "Has someone verified all the bills?"
· Active Voice- Active voice is a grammatical structure in which the subject of the sentence performs the action expressed by the verb.
· Passive Voice- Passive voice refers to a grammatical construction where the subject of a sentence undergoes an action rather than performing it. In passive voice sentences, the emphasis is on the recipient or object of the action.
In the active voice, the subject (someone) performs the action of the verb (verified).
Conversion Rule:
auxiliary verb (has, have) + Object + been + past participle + by + subject? -> <-(has, have) + Subject + V3 + object.