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: Surgery
[{'content': 'Nerve involved in parotidectomy is ? \nSelect and explain. \nA. Trigeminal, B. Mandibular, C. Auriculotemporal, D. Lingual', 'role': 'user'}, {'content': "Answer: C \nExplanation: The nerve which is commonly involved is auriculotemporal nerve leading to Frey's syndrome. There are a number of quite invasive techniques described to prevent Frey's syndrome following parotidectomy. These are: Sternomastoid muscle flap, temporalis fascial flap, inseion of aificial membrane between skin and parotid sheath. Reference : Bailey & Love, 27th Edition, page no = 794.", 'role': 'assistant'}]