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: Medicine
[{'content': 'Which is not a macrophage: \nSelect and explain. \nA. Monocyte, B. Microgila, C. Kupffer cells, D. Lymphocytes', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Answer is D (Lymphocytes):', 'role': 'assistant'}]