This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hearing Loss, Subject name: ENT
[{'content': '3-year-old Rajan is having sensorineural deafness, not benefited by hearing aids. Next best management is: \nSelect and explain. \nA. Cochlear implant, B. Stapes fixation, C. Stapedectomy, D. Fenestration', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (a) Cochlear implant(Ref. Cummings, 6th ed., 2434)Stapedectomy is done for otosclerosis.Fenestration operation used to be done previously for otosclerosis, though stapedotomy is done these days.Stapes fixation is no surgery', 'role': 'assistant'}]