D. all of the above
hope this helps
I believe the answer to your question is oligodendrocytes.
Answer:
*Should someone be poisoned from water
Explanation:
Answer:the build up of thick, sticky mucus that can damage many of the body's organs.
Explanation:
Cystic fibrosis is an inherited disease characterized by the buildup of thick, sticky mucus that can damage many of the body's organs. The disorder's most common signs and symptoms include progressive damage to the respiratory system and chronic digestive system problems.