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: Microbiology
[{'content': 'The causative organism for cat-scratch disease is \nSelect and explain. \nA. Chlamydia trachomatis, B. Donovania granulomatis, C. Bartonella henselae, D. Hemophilia ducreya', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]