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': 'A 31 year old female patient complains of bilateral impairment of hearing for the 5 year. On examination, tympanic membrane is normal and audiogram shows a bilateral conductive deafness. Impedance audiometry shows As type of curve and acoustic reflexes are absent. All constitute pa of treatment, except: \nSelect and explain. \nA. Hearing aid, B. Stapedectomy, C. Sodium fluoride, D. Gentamicin', 'role': 'user'}, {'content': "Answer: D \nExplanation: Gentamicin is used to treat Meniere's disease.", 'role': 'assistant'}]