This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
[{'content': 'Which of the following is not a phagocytic cell - \nSelect and explain. \nA. Macrophages, B. Kupffler cells, C. NK cells, D. Neutrophils', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., NK cells* Micro-organisms entering the tissue fluid or blood stream are very rapidly engulfed by the cells called phagocytes.* Phagocytic cells are of two types:1) Mononuclear macrophages: Monocytes (blood), histiocytes (tissues), alveolar macrophages (lung), kupffer cells (liver), microglia (brain), osteoclasts (bone), and mesangial cells (kidney).2) Polymorphonuclear microphages: Neutrophils.* Basophils also belong to polymorphonuclear microphages but they are not phagocytes.* Eosinophils have only a limited degree of phagocytic activity.", 'role': 'assistant'}]