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': 'Normal leucocyte count is ? \nSelect and explain. \nA. 8000 -15000, B. 4000 - 11000, C. 5000 - 8000, D. 7000 -14000', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., 4000 - 11000The normal range of leucocytes is 4000 - 11000 white blood cells per microliter.Of these, Neutrophils form 50 - 70%, lymphocytes 20 - 40%, monocytes 2 - 8%, eosinophils 1 -4%, basophils 0.4%.", 'role': 'assistant'}]