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
A child aged 3 yrs, presented with severe sensorineural deafness, was prescribed hearing aids, but showed no improvement. What is the next line of management? 
Select and explain. 
A. Fenestration surgery, B. Stapes mobilisation, C. Cochlear implant, D. Conservative
C: Cochlear implant
Answer: C: Cochlear implant 
Explanation: Cochlear implants are neural prostheses that conve sound energy to electrical signals and can be used to stimulate the auditory division of the eighth nerve directly. Bilateral cochlear implants are increasingly common and serve to enhance sound localization and improve understanding of speech in background noise.