Select the option that expresses the given sentence in passive voice.
You have lost your note book.

Correct option is B

The correct passive voice of the given sentence is (b) Your note book has been lost.
Definition:
· Active voice: Subject performs the action.
· Passive voice: Subject receives the action.
Rule of Conversion (Present Perfect Tense):
Structure:
· Active: Subject + has/have + V3 + object
· Passive: Object + has/have + been + V3 + by + subject
Explanation:
Active: You have lost your notebook.
Passive: Your notebook has been lost (by you – optional).
The verb “has” agrees with singular subject "notebook".
Incorrect options:
· (a) “have been” – subject-verb disagreement
· (c) “is lost” – simple present/passive; tense mismatch
· (d) “got lost” – past passive, not correct for present perfect