This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
[{'content': 'Cochlear implant used in NOT RELATED ENT \nSelect and explain. \nA. Sensorineural deafness, B. Conductive deafness, C. Mixed deafness, D. Absent pinna', 'role': 'user'}, {'content': 'Answer: A \nExplanation: .', 'role': 'assistant'}]