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: Surgery
[{'content': 'Spontaneous peritonitis in cirrhosis patients; the polymorphonuclear cells are - \nSelect and explain. \nA. More than 200 cells/cumm, B. More than 300 cell/cumm, C. More than 400 cells/cumm, D. More than 500 cells/cumm', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]