This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chelating Agent, Subject name: Pharmacology
Which of the following is iron chelator: 
Select and explain. 
A. Desferrioxamine, B. EDTA, C. BAL, D. Penicillamine
A: Desferrioxamine
Answer: A: Desferrioxamine 
Explanation: Ans. A. DesferrioxamineEDTA is used for Manganese, iron, lead, bismuth. BAL is used for bismuth arsenic and lead. Penicillamine is used for copper poisoning. Dessferrioxime is iron chelator.