Which of the following is an age-related change that affects the individual's hearing ability?
a. Decreased rigidity of the ossicles
b. Increased elasticity of the tympanic membrane
c. Decrease in number of neurons and blood vessels
d. Increased hair cells in the inner ear
C
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A With aging, the ossicles increase in rigidity.
B With aging, the elasticity of the tympanic membrane decreases.
C An age-related change in hearing is a decrease in the number of neurons and blood vessels in the ear.
D With aging, there is a loss of hair cells in the inner ear.
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