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': 'In leucopenia, which cell type is predominantly involved? \nSelect and explain. \nA. Erythrocytes, B. Granulocytes, C. Eosinophils, D. Monocytes', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Leucopenia\xa0\xa0\nThe absolute granulocyte count is particularly low (below 1500/µl) with relative lymphocytosis. The neutrophils are morphologically normal, but their alkaline phosphatase score is high.\nReference:\xa0 Textbook of Pathology, Harsh Mohan, 7th ed page no 302', 'role': 'assistant'}]