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: Pharmacology
[{'content': 'Desfuroxamide is a drug used for: \nSelect and explain. \nA. Kala-azar, B. Pernicious anaemia, C. Pain control, D. Thalassemia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]