This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diagnostic and operative ENT, Subject name: ENT
[{'content': 'High-frequency audiometry used in \nSelect and explain. \nA. Minieres disease, B. Otosclerosis, C. Drug induced ototoxicity, D. Sensorineural Hearing loss', 'role': 'user'}, {'content': 'Answer: C \nExplanation: As ototoxicity appears to be most pronounced in the higher frequencies, it can be assessed at an earlier stage by using high-frequency audiometry from 8 to 20 kHz. Ototoxic drugs: Ref : Diseases of ENT by Dhingra 6th edition Pgno: 34', 'role': 'assistant'}]