The Transmission of Your Voice from Your Cell Phone to the Cell

The transmission of your voice from your cell phone to the cell phone tower most closely resembles:

A) afferent neurons transmitting information to the central nervous system.
B) glial cells providing a support network for the nervous system.
C) interneurons connecting motor and sensory neurons.
D) efferent neurons transmitting information from the central nervous system to an effector.
E) the brain sending an electrical signal down the spinal cord to your leg.