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': 'Which of the following is the most specific and sensitive screening test in a case of renovascular hypertension - \nSelect and explain. \nA. HRCT, B. CT guided angiography, C. Captopril induced radionuclide scan, D. MRI', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]