A 31-Year-Old Patient Tells the Nurse That He Has Noticed

A 31-year-old patient tells the nurse that he has noticed a progressive loss in his hearing.He says that it does seem to help when people speak louder or if he turns up the volume.The most likely cause of his hearing loss is:

A) otosclerosis.
B) presbycusis.
C) trauma to the bones.
D) frequent ear infections.