This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy of Middle Ear (Otitis Media), Subject name: ENT
[{'content': "Jacobson's nerve is a branch of: \nSelect and explain. \nA. Vagus nerve, B. Hypoglossal nerve, C. Glossopharyngeal nerve, D. Trigeminal nerve", 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. (c) Glossopharyngeal nerveRef: Dhingra's ENT 6th ed./4* Jacobsons nerve is a branch of glossopharyngeal nerve (CN- IX) in middle ear.* It supplies medial aspect of tympanic membrane.", 'role': 'assistant'}]