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': 'All are indications of methotrexate except? \nSelect and explain. \nA. Leukemia, B. Breast cancer, C. Rheumatoid ahritis, D. Renal failure', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Renal failure o MTX, usually in combination with other drugs, is effective against acute lymphocytic leukemia, choriocarcinoma, Burkitt's lymphoma in children, breast cancer, and head neck carcinomas.", 'role': 'assistant'}]