This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
[{'content': 'captopril test is used as a diagnostic test for ? \nSelect and explain. \nA. renovascular hypeension, B. postural hypotension, C. acute congestive hea failure, D. MI', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ref : kd tripathi 8th ed', 'role': 'assistant'}]