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': 'The cochlear implant is done in - \nSelect and explain. \nA. Scala vestibuli, B. Scala tympani, C. Cochlear duct, D. Endolymphatic duct', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Advantage of Vera technique\n\nSimple\nLess chances of injuring facial nerve\nSuitable in young children where mastoid has not developed fully\nMinimal bone trauma ∴ fast healing and less complication rate', 'role': 'assistant'}]