The answer is C.
Have a good day!
Of the following given choices;
A. a lack of electrolytes in the brain
B. fatty mitochondria
C. two nuclei in some neurons
D. progressive deterioration of the myelin
The answer is D.
Musciplte sclerosis is an autoimmune condition in which the immune system of the subject attacks the nervous system. Specifically, the immune system attacks the myelin sheath of neurons as though they are foreign hence causing them damage. Myelin sheath protects the neurons and also allows impulses to pass along the axon much quicker than it would be without the sheath.
For me your question is blank.
B. It keeps the bones from rubbing together. If the cartilage wasn't there, the bones might try to fuse. With some people, the absence of the cartilage would result in arthritis.
