This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Aerial disorders, Subject name: Surgery
[{'content': 'Which is the most common site of peripheral aneurysm? \nSelect and explain. \nA. Femoral aery, B. Radial aery, C. Popliteal aery, D. Brachial aery', 'role': 'user'}, {'content': 'Answer: C \nExplanation: MC site of peripheral aneurysm: Popliteal aneurysm MC site of Splanchnic Aneurysm: Splenic Aery Aneurysm. MC vessel involved in aneurysm: Circle of Willis MC location of extra- cranial aneurysm: Aoa > Iliac > Popliteal > Femoral (AIPF) MC site of extra- cranial aerial aneurysm is infrarenal aoa', 'role': 'assistant'}]