This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
[{'content': 'Which of the following is an Antimetabolite \nSelect and explain. \nA. Methotrexate, B. Cyclosporine, C. Etoposide, D. Vinbalstine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Refer KDT 6/e p 823 Methotrexate is an Antimetabolite that acts By inhibiting DHFRase', 'role': 'assistant'}]