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': 'Visceral leishmaniasis is predisposed by \nSelect and explain. \nA. Sickle cell anemia, B. Renal transplantation, C. G6PD deficiency, D. AIDS', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]