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
[{'content': 'Bed of tonsil is formed by - \nSelect and explain. \nA. Superior constrictor, B. Middle constrictor, C. Inferior constrictor, D. Platysma', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Superior constrictor o Tonsillar bed is formed by the following:1. Pharyngobasilar fascia3. Buccopharyngeal fascia5. Glossopharyngeal nerve2. Superior constrictor muscle4. Styloglossus muscle", 'role': 'assistant'}]