Conduction Deafness May Occur in a Person Who Has Had

Conduction deafness may occur in a person who has had repeated infections of the middle ear.The most likely impairment that contributes to this type of deafness is that

A) fluid is no longer able to move within the semicircular ducts.
B) the eustachian tube is blocked by scar tissue.
C) the tympanic membrane has become scarred, and connections between the ossicles have stiffened.
D) the stereocilia on the hair cells in the organ of Corti can no longer bend or cause changes in membrane potential.
E) the basilar membrane has stiffened and no longer flexes in response to pressure waves.