This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharynx, Subject name: ENT
Bed of tonsil is formed by 
Select and explain. 
A. Superior constrictor, B. Middle constrictor, C. Inferior constrictor, D. Platysma
A: Superior constrictor
Answer: A: Superior constrictor 
Explanation: The tonsillar bed is formed by the following: Pharyngobasilar fascia Superior constrictor muscle Buccopharyngeal fascia Styloglossus muscle Glossopharyngeal nerve Ref: PL Dhingra, Diseases of Ear, Nose & Throat, 7th edition, pg no. 291