This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
[{'content': 'The muscle stylopharyngeus is supplied by which nerve ? \nSelect and explain. \nA. Vagus, B. Spinal accessory, C. Glossopharyngeal, D. Facial', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The motor fibers are derived from cranial accessory nerve through the branches of the vagus. They supply all muscles of pharynx,except the stylopharyngeus which is supplied by the glossopharyngeal nerve <img src=" /> Ref.BDC volume 3,Sixth edition 235', 'role': 'assistant'}]