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': 'Micky mouse sign is due to following blood vessels except \nSelect and explain. \nA. Common femoral vein, B. Great saphenous vein, C. Short saphenous vein, D. Common femoral artery', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Transverse veiw at saphenofemoral junction, shows the vessels aligned like a micky mouse.', 'role': 'assistant'}]