This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: ENT
[{'content': "Frey's syndrome is due to the involvement of- \nSelect and explain. \nA. Auriculotemporal nerve, B. Glossopharyngeal nerve, C. Vagus nerve, D. All", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]