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': 'WBC count of more than 1,00,000 cells/cc of blood\nindicates: \nSelect and explain. \nA. Leukopenia, B. Leukoplakia, C. Leukocytosis, D. Leukemia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]