Select the correct passive form of the given sentence.
Someone has stolen my watch.

Correct option is B

Active voice: The subject of the sentence does the action (e.g., The chef cooked the meal).
Passive voice: The subject of the sentence receives the action (e.g., The meal was cooked by the chef).
The correct passive voice of the given sentence is (b) My watch has been stolen.
Explanation:
· The sentence is in present perfect tense.
· Subject + has/have + V3 + object
· Passive: Object + has/have + been + V3 (+ by + agent)
Structure:
· Someone has stolen my watch.
· Passive: My watch has been stolen.
Option (b) is correct. "By someone" is optional and often omitted when the doer is unknown or unimportant.