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
Desfuroxamide is a drug used for: 
Select and explain. 
A. Kala-azar, B. Pernicious anaemia, C. Pain control, D. Thalassemia
D: Thalassemia
Answer: D: Thalassemia 
Explanation: None