This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Embryology, Subject name: Anatomy
[{'content': 'Ligamentum teres is remnant of - \nSelect and explain. \nA. Umbilical arteries, B. Left umbilical vein, C. Ductus-venosus, D. Ductus arteriosus', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Left umbilical vein o The ligament teres represents the obliterated left umbilical vein.Embryonic partRemnantsDuctus arteriosusLigamentum arteriosumUmbilical arteryProximal partSuperior vesical artery.Distal partMedial umbilical ligamentUmbilical veinLigament teresDuctus venosusLigamentum venosusSeptum primumFossa ovalisSeptum secondumAnnulus ovalis / Limbus fossa ovalis", 'role': 'assistant'}]