The myelin on myelinated neurons can be degraded or destroyed in diseases such as multiple sclerosis-a process called demyelination. If a myelinated neuron was affected by demyelination, how would this affect action potentials in that neuron?

Explanation:

Myelination is the process of generating myelin in neurons. In CNS,  oligodendrocyte make the  myelin sheath.

The main function of myelin is to increase the speed of electrical impulses  along the myelinated fiber.

Myelinated fibers lack voltage-gated sodium channels along the myelinated internodes,  having them only at the nodes of Ranvier though which the molecules moves.

Demyelination is the loss of the myelin sheath,  result due to some neurodegenerative autoimmune diseases, resulting in the decrease of the speed of action potential propagation.

the correct answer is c   with the systems

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