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: Radiology
[{'content': 'In phlebography dye is injected into: \nSelect and explain. \nA. Anterior tibial vein, B. Great saphenous vein, C. Dorsal metatarsal vein, D. Sho saphenous vein', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Dorsal metatarsal vein', 'role': 'assistant'}]