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': 'Spirochaetes among following are:\n(A)Syphilis\n(B)Leptospira\n(C)Mycoplasma\n(D)Brucella\n(E)Borrelia \nSelect and explain. \nA. ABE, B. BCA, C. DAB, D. EAB', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]