This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vascular surgery, Subject name: Surgery
[{'content': 'Peripheral aneurysm most commonly located at \nSelect and explain. \nA. Femoral aery, B. Popliteal aery, C. Brachial aery, D. Axillary aery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: . Ans : (b) Popliteal aery - Popliteal aery aneurysm accounts for 70% of all peripheral aneurysms ; two- thirds are bilateral. - Almost all patients (97%) with Popliteal aery aneurysms are male.', 'role': 'assistant'}]