This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Anatomy
[{'content': 'Which of the following drugs is not used for the treatment of cancer \nSelect and explain. \nA. Cyclophosphamide, B. Cyclosporine, C. Methotrexate, D. 6-mercaptopurine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ref-KDT 6/e p839,840 All antimetabolite can be used as anticancer drugs excepts azathioprine Cyclosporine acts by inhibiting the transcription of IL-2 gene.it has no anti-cancer propey', 'role': 'assistant'}]