Ms J Has Had a Severe Hearing Loss Since Birth

Ms. J. has had a severe hearing loss since birth. She has recently inquired about the possibility of receiving a cochlear implant. For the most part, cochlear implants:

A) restore hearing to normal
B) are only appropriate for individuals with mild hearing loss
C) are unable to be used unless the implant was received immediately after hearing loss so that nerve tissue has been preserved
D) are most useful for individuals with profound sensorineural deafness who are unable to benefit from hearing aids alone