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: Microbiology
[{'content': 'Which is not true about macrophages: \nSelect and explain. \nA. Activation by IFN-y, B. Major cells in chronic inflammation, C. M2 type involved in inflammation, D. Phagocytic cells', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. c. M2 type involved in inflammation', 'role': 'assistant'}]