This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Medicine
[{'content': 'For the following statements, select whether it is applicable to any or all of the below medications.Inhibition of angiotensin converting enzyme I (ACE I) \nSelect and explain. \nA. hydralazine, B. enalapril, C. spironolactone, D. metoprolol', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Enalapril may exert its effect by inhibiting formation of angiotensin II. This lowers systemic vascular resistance. In addition, ACE inhibitors have a natriuretic effect by inhibition of aldosterone secretion. They have been shown to improve mortality and decrease hospitalization in patients with CHF.', 'role': 'assistant'}]