This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Myelin sheath in CNS is synthesized by : 
Select and explain. 
A. Microglia, B. Schwann cell, C. Oligodendroglia, D. All
C: Oligodendroglia
Answer: C: Oligodendroglia 
Explanation: C i.e. 011godendrocyte