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': 'Diuretics of choice for acute pulmonary edema ? \nSelect and explain. \nA. Loop diuretics, B. Thiazides, C. Spironolactone, D. Mannitol', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Loop diuretics", 'role': 'assistant'}]