Can someone help me with this three question I promise I will mark u a brainliest. Pls I need to get it done today. 1.Impaired muscular function in multiple sclerosis occurs due to frequent loss of nerve signals, one reason for loss of nerve impulses maybe:

A. loss of myelination in axons B. death of neurons in brain
C. loss of cell bodies of neurons
D. none of the above

2. Grey matter of the nervous system is composed of:

A. myelinated neurons
B. unmyelinated neurons
C. collection of neuroglia
D. branched nerves

3. Microglia are:

A. wandering white blood cells, function is immune defense.

B. forming myelin sheaths to insulate axons.

C. forming the blood brain barrier.

D. producing CSF