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: Anatomy
[{'content': 'Ligamentum teres develops from \nSelect and explain. \nA. Umbilical aery, B. Umbilical vein, C. Ductus venosus, D. Poal radicles', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Umbilical vein "In anatomy, the round ligament of liver (AKA: ligamentum teres - or more specifically ligamentum teres hepatis as the human body has three round ligaments in total) is a degenerative string of tissue that exists in the free edge of the falciform ligament of the liver. The round ligamentrepresents the remnant of the fetal left umbilical vein"', 'role': 'assistant'}]