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': 'Leukocytosis is seen in all except - \nSelect and explain. \nA. Brucellosis, B. Acute MI, C. Typhoid, D. Diptheria', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]