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
The cochlear implant is done in - 
Select and explain. 
A. Scala vestibuli, B. Scala tympani, C. Cochlear duct, D. Endolymphatic duct
B: Scala tympani
Answer: B: Scala tympani 
Explanation: Advantage of Vera technique

Simple
Less chances of injuring facial nerve
Suitable in young children where mastoid has not developed fully
Minimal bone trauma ∴ fast healing and less complication rate