Select the option that will improve the highlighted part of the given sentence. In case no improvement is needed, select 'No improvement required'.
You is not allowed to sit here without permission.

Correct option is B

The correct substitution of the highlighted words is (b) are not allowed.
Explanation: The subject “You” is always treated as plural, even when referring to one person.
Hence, the verb should agree in plural form — “are”, not “is”. Also, “is no allowing” is grammatically incorrect and “has not allowed” changes the voice and tense.
Grammatical rule used:
· Subject-verb agreement: “You” always takes plural verbs: You are, You have, You do, etc.
· Modal/Passive Voice: "You are not allowed" is correct passive structure for giving permission/denial.
Example:
✅ You are not allowed to enter without ID.
❌ You is not allowed to enter without ID.