After Reading the Paragraph Below, Answer the Question(s) That Follow(s)

Multiple Choice

After reading the paragraph below, answer the question(s) that follow(s) .
Walter has noticed that, as he has gotten older, his peripheral nervous system has been in decline. For example, his visual abilities have declined markedly-in particular his night vision is poor. Also, his ability to perceive tastes is much less active than in his youth.
-Walter's reduced ability to sense tastes is caused by

A) age effects on taste bud cells.
B) age effects on rod ells.
C) age effects on myelinated neurons.
D) age effects on the tongue epithelium.