This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardio thoracic surgery  , Subject name: Surgery
[{'content': 'Cirsoid aneurysms most commonly occur in which of the following vessels? \nSelect and explain. \nA. Aoic arch, B. Splenic aery, C. Saphenous vein, D. Superficial temporal aery', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Cirsoid aneurysms are rare aeriovenous malformations of the scalp and extremities. Cirsoid aneurysms of the scalp are fed by the superficial temporal aery', 'role': 'assistant'}]