Correct Answer & Explanation
Option B
• When the reporting verb 'forbade' (past tense of forbid) is used, it already carries a negative meaning ('prohibited from doing something').
• Therefore, adding 'not' with 'forbade' creates a double negative, making Option C grammatically incorrect.
• The correct structure is: Subject + forbade + object + to + V₁ ('The teacher forbade the boys to make a noise').