The slowdown of neural communication in multiple sclerosis involves a degeneration of the

It involves the degeneration of myelin.

Explanation:

Myelin is a structure which permeates the neuron and allows the electric impulses to pass from one neuron to the other faster and more efficiently.

This is because myelin is an insulating layer which allows the electrical impulse to go faster, such as it would work on a cable.

During multiple sclerosis, the myelin is damaged and begins degenerating which in turn makes it harder and not possible for the impulses to pass from one neuron to the other.

This affects the spinal cord which creates the motor deficiency best known during this disease.

sumerians were polytheistic, meaning they believed in many different gods. so, the best answer is c.