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: Unknown
[{'content': 'Which of the following is/are AT1 receptor blocker - \nSelect and explain. \nA. Spironolactone, B. Losartan, C. Captopril, D. None', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Losartan", 'role': 'assistant'}]