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': 'Which of the following chelating agent is the degradation product of Penicillin ? \nSelect and explain. \nA. EDTA, B. Dimercaprol, C. Penicillamine, D. Desferrioxamine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]