At 82, Deborah Has Found It Increasingly Difficult to Hear

At 82, Deborah has found it increasingly difficult to hear her grandchildren talk, and it's been years since she heard the birds singing. If Deborah is like most other adults with this problem, she will likely be helped by:

A) hearing aids.
B) cochlear implants.
C) surgery to increase flexibility of the middle ear bones.
D) ear drops to facilitate the production of protective ear wax.