PROHIBIT :

Answer: Option C

Prescribe :advise and authorize the use of (a medicine or treatment) for someone, especially in writing.
Forfeit :lose or be deprived of (property or a right or privilege) as a penalty for wrongdoing.
Provide :make available for use, supply.
Forbid :refuse to allow (something).
Prohibit :formally forbid (something) by law, rule, or other authority.

Synonym of Prohibit is Forbid.