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
[{'content': 'Phagocytosis in brain is caused by ? \nSelect and explain. \nA. Astrocytes, B. Microglia, C. Oligodendrocytes, D. Ependymal cells', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Microglia", 'role': 'assistant'}]