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: Physiology
Phagocytosis in the CNS is done by 
Select and explain. 
A. Astrocytes, B. Schwann cells, C. microglia, D. Oligocytes
C: microglia
Answer: C: microglia 
Explanation: Microglia in CNS has phagocytic activity.