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': 'Not a cause of Gynaecomastia: \nSelect and explain. \nA. INH, B. Cimetidine, C. Digitalis, D. Pyrazinamide', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Pyrazinamide', 'role': 'assistant'}]