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: Medicine
[{'content': 'ACE inhibitors are contraindicated in bilateral renal artery stenosis because - \nSelect and explain. \nA. Angiotensin II is required for GFR, B. Hyperrenism which occurs in long term therapy is dangerous to the kidney which secondary damages kidney causing decreased renal bloodfoow, C. Bradykinin motabolism is affected, D. Prostaglandin levels are altered', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]