This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diuretic, Subject name: Pharmacology
[{'content': 'Which of the following is a mineralocorticoid antagonist - \nSelect and explain. \nA. Spironolactone, B. Inamrinone, C. Nicorandil, D. Ketorolac', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Spironolactone Potassium sparing diureticsAldosterone antagonistsRenal epithelial Ma+ channel inhibitorso Spironolactoneo Eplerononeo Canrenoneo Potassium canrenoneo Prorenoneo MexrenoneoAmilorideo Triamterene", 'role': 'assistant'}]