Charles has been thinking about a friend who told him she has been diagnosed with multiple sclerosis. Charles knows from psychology class that multiple sclerosis causes damage to , which can lead to fatigue, trouble with vision, and cognitive disabilities.

myelin protective sheath that covers the nerve fibers (myelination)

Explanation:

Multiple sclerosis (MS) is a potentially disabling disease of the brain and spinal cord (central nervous system). In MS , the immune system attacks the protective sheath (myelin) that covers nerve fibers and causes communication problems between your brain and the rest of your body.

if you have to make a general question and respond to your thoughts, then this isn't really a question someone can you on. read the passage, form your question, and answer using your thoughts. no one else can understand how you interpreted this text if you don't tell us.