<prompt> A child with congenital hearing loss is brought for cochlear implantation. For the implantation, the following structure should be intact:Outer hair cellInner hair cellSpiral ganglion cellAuditory nerve  <response>: 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. Successful cochlear implantation requires an intact and functional auditory processing pathway, from spiral ganglion cells to the auditory coex. 