Answer:
An elderly person (option 4)
Explanation:
As we age, our body changes. The ears suffer from this change as well, they become bigger, they accumulate more earwax and the cartilage in the external ear canal is presented in more quantity. The eardrum becomes rigid and the neural system changes too. With all of these changes is easy to start losing the hearing and process auditory disorders, this contributes to the ear to deteriorate and its main function of process sounds gets even more difficult.