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': 'The function common to neutrophils, monocyte & macrophages is - \nSelect and explain. \nA. Immune response, B. Phagocytosis, C. Liberation of histamine, D. Destruction of old erythrocytes', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Phagocytes\n\nMicro-organisms entering the tissue fluid or bloodstream are very rapidly engulfed by the cells called phagocytes.\n\n\nPhagocytic cells are of two types :\n\n\nMononuclear macrophages: Monocytes (blood), histiocytes (tissues), alveolar macrophages (lung), kupffer cells (liver), microglia (brain), osteoclasts (bone), and mesangial cells (kidney).\nPolymorphonuclear microphages: Neutrophils.\n\n\nBasophils also belong to polymorphonuclear microphages but they are not phagocytes.\nEosinophils have only a limited degree of phagocytic activity.', 'role': 'assistant'}]