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: Unknown
[{'content': 'The treatment of early stage of East African sleeping sickness is – \nSelect and explain. \nA. Pentamidine, B. Eflornithine, C. Suramin, D. Melarsopol', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]