What is the name for all the neurons in the central nervous system?

a. axon neurons

b. interneurons

c. motor neurons

d. sensory neurons?

I believe the answer is the interneurons.

The basic unit of the central nervous system is the neuron or the nerve cells. Billions of neurons allow the different parts of the body to communicate with each other via the brain and the spinal cord. A fatty material called myelin coats nerve cells to insulate them and to allow nerves to communicate quickly.