Select the option that expresses the given sentence in passive voice.
Someone has taken my secret diary.

Correct option is C

The correct passive voice of the given sentence is "My secret diary has been taken by someone."
Rules of conversion:
· Active voice structure: Subject + has/have + V3 + Object.
· Passive voice structure: Object + has/have + been + V3 + by + Subject.
· Explanation: In the given sentence, the object "my secret diary" becomes the subject in the passive voice, and "has been taken" maintains the tense.
Example:
Active: Someone has stolen the jewels.
Passive: The jewels have been stolen by someone.