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': 'Active metabolite of Spironolactone  is: \nSelect and explain. \nA. Gluconalactone, B. Eplerenone, C. Canrenone, D. Triamterene', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Spironalactone is aldosterone antagonist and\xa0Canrenone is the active metabolite.', 'role': 'assistant'}]