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': 'High-frequency audiometry is used in \nSelect and explain. \nA. Otosclerosis, B. Ototoxicity, C. Non-organic hearing loss, D. Meniere disease', 'role': 'user'}, {'content': 'Answer: B \nExplanation: High-frequency audiometry (>8000KHz) is used to detect sensorineural hearing loss due to ototoxicity. Other tests: OAE, Electrocochleography Audiometry graph of ototoxicity due to gentamicin Ref : Diseases of ENT by Dhingra 6th edition Pgno : 38', 'role': 'assistant'}]