Question

the cochlear implant ______ the cochlear.
partners with
circumvents
replaces

Explanation:

A cochlear implant is a device that bypasses (circumvents) the damaged parts of the cochlea to send sound signals to the brain. "Partners with" is incorrect as it's not a partnership. "Replaces" is also incorrect as it doesn't fully replace the cochlea but works around its damaged parts.

Answer:

B. circumvents