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: Surgery
[{'content': 'Which of the following aery is most cemmonly used for coronary aery bypass surgery \nSelect and explain. \nA. Bronchial, B. Ulnar, C. Phrenic aery, D. Radial', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Radial', 'role': 'assistant'}]