Typically, as an artery gets farther from the heart, its diameter decreases, and there is a(n)________.

A) decrease in the amount of smooth muscle and an increase in the number of elastic fibers
B) increase in the amount of smooth muscle and a decrease in the number of elastic fibers
C) increase in both smooth muscle and elastic fibers
D) decrease in both smooth muscle and elastic fibers
E) no change in the amount of smooth muscle or elastic fibers