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': 'Which of the following causes increased rennin on prolonged use ? \nSelect and explain. \nA. Clonidine, B. Enalapril, C. Methyldopa, D. Blocker', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b i.e., Enalapril", 'role': 'assistant'}]