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': 'Dominant cell type in grey hepatization stage of community acquired pneumonia is \nSelect and explain. \nA. Eosinophils, B. Neutrophils, C. Macrophages, D. Monocytes', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In the third phase grey hepatisation, no new erythrocytes are extravasating, and those already present have been lysed and degraded.\xa0\nThe neutrophil is the predominant cell,\xa0fibrin deposition is abundant,\xa0and bacteria have disappeared. This phase corresponds with successful containment of the infection and improvement in gas exchange.', 'role': 'assistant'}]