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': 'Suramin is the drug of choice for \nSelect and explain. \nA. Brill Zeinsser disease, B. Rocky mountain spotted fever, C. African trypanosomiasis, D. Q fever', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]