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: Pathology
Complex granular corpuscles are produced by - 
Select and explain. 
A. Oligodendrocytes, B. Astrocytes, C. Microglia, D. Vascular endothelium
C: Microglia
Answer: C: Microglia 
Explanation: Complex granular corpuscels are produced by microglia.