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: Radiology
[{'content': 'The procedure of choice for the evaluation of an aneurysm is: \nSelect and explain. \nA. Ultrasonography, B. Computed tomography, C. Magnetic resonance imaging, D. Aeriography', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Aeriography', 'role': 'assistant'}]