Question

the term central nervous system refers to the

sensory (afferent) nerves
somatic nerves
spinal nerves
brain and spinal cord

Explanation:

The central nervous system (CNS) is defined as consisting of the brain and spinal cord. Sensory (afferent) nerves are part of the peripheral nervous system (PNS) that carry sensory information to the CNS. Somatic nerves are also part of the PNS, involved in voluntary movements and sensory input from the body. Spinal nerves are part of the PNS, emerging from the spinal cord and connecting to the body. So the correct option is the one that includes the brain and spinal cord.

Answer:

D. brain and spinal cord