Question

which of the following is one of the two main components of the central nervous system?
a cranial nerves
b spinal cord
c motor neurons
d ganglion

Explanation:

The central nervous system (CNS) consists of the brain and the spinal cord. Cranial nerves are part of the peripheral nervous system. Motor neurons are a type of nerve cell and not a main component of the CNS. Ganglia are clusters of nerve cell bodies in the peripheral nervous system.

Answer:

B. spinal cord