Dr. Vazquez is examining a cell from the nervous system of an animal. He notices that at one end of the cell body is a long, fibrous strand of tissue. He immediately recognizes this as an axon that is responsible for

A. carrying signals away from the cell body

B. receiving signals from other cells and carrying them toward the cell body.

C. determining the speed at which an action potential will travel

D. determining whether the cell inhibits or excites neighboring neurons