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 of the following drugs is known to cause granuloma in the liver - \nSelect and explain. \nA. Allopurinol, B. Nifedipine, C. Tetracycline, D. Methyl testosterone', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is `a' i.e., Allopurinol Drugs causing granuloma in liver - o Phenylbutazone o Allopurinol o Diltiazem o Sulfonamides o Quinidine o Carbamazepine.", 'role': 'assistant'}]