This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Etiology: Carcinogenic Agents, Subject name: Pathology
[{'content': 'Which chemotherapeutic agent is pro carcinogenic? \nSelect and explain. \nA. Alkylating agents, B. Antibiotics, C. Monoclonal antibodies, D. All of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ANSWER: (A) Alkylating agentsREF: Robbin s 7th ed p. 322Pro carcinogenic chemicals:Alkylating agentsAromatic amines and azo dyesNitrosoamines and amides', 'role': 'assistant'}]