Correct option is C
·
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.
· Correct answer is “By whom are the accounts of this hotel kept?”
Option (c) correctly converts the active voice question into passive voice, maintaining the present tense and the meaning of the original question.
· Conversion rule:
who + verb + object? -> <- by whom + auxiliary verb (is, am, are) + past participle?