This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
[{'content': "A patient of Meniere's disease has failed all medical treatment but still retains a serviceable hearing. All of the following treatments can be considered except: \nSelect and explain. \nA. Endolymphatic sac decompression, B. Intratympanic gentamicin, C. Vestibular nerve section, D. Labyrinthectomy", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Since the hearing of the patient is serviceable as present those procedures should be considered which retain the useful hearing such as in (a), (b) and (c). Labyrinthectomy will totally destroy the hearing and is not suitable in this patient.', 'role': 'assistant'}]