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': 'Causative agent of Trench fever \nSelect and explain. \nA. Coxiella burnetii, B. Bartonella Quintana, C. R. tsusugamushi, D. R. prowazekii', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Q fever - Coxiella burnetii.\nTrench fever - Bartonella Quintana.', 'role': 'assistant'}]