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 antineoplastic drug is a peptide - \nSelect and explain. \nA. Bleomycin, B. Asparginase, C. Valinomycin, D. Dactinomycin', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Bleomycin o Bleomycin is a small peptide that contains a DNA - binding region and an iron-binding domain at opposite ends of the molecule.", 'role': 'assistant'}]