**Core Concept**
Cochlear implants are neuroprosthetic devices that bypass damaged or non-functioning parts of the ear and directly stimulate the auditory nerve, allowing some deaf individuals to perceive sound.

**Why the Correct Answer is Right**
The correct answer involves the stimulation of the auditory nerve by an electrode array in the cochlea, which converts sound waves into electrical signals. This process bypasses the non-functioning hair cells in the cochlea, allowing for some perception of sound. The auditory nerve, responsible for transmitting sound signals to the brain, is stimulated by the implant, enabling the individual to perceive sound.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect as it does not accurately describe the mechanism of cochlear implants.
* **Option B:** This option is incorrect as it implies that cochlear implants restore normal hearing, which is not the case. Cochlear implants provide a sense of sound but do not restore natural hearing.
* **Option C:** This option is incorrect as it does not accurately describe the role of the auditory nerve in cochlear implant function.

**Clinical Pearl / High-Yield Fact**
A key consideration when evaluating cochlear implant candidates is the presence of a functioning auditory nerve, as this is essential for the implant to be effective.

**Correct Answer: C. The auditory nerve is stimulated by the electrode array in the cochlea.**