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': 'The diuretic of choice for rapid relief of congestive symptoms in a patient of CHF is: \nSelect and explain. \nA. Hydrochlorothiazide, B. Furosemide, C. Metolazone, D. Amiloride', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]