This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular System, Subject name: Anatomy
[{'content': 'Remnant of ductus venosus will be: \nSelect and explain. \nA. Ligamentum teres, B. Ligamentum venosum, C. Ligamentum arteriosum, D. Falciform ligament', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. (b) Ligamentum VenosumRef: Langeman's 8th / 264, 259", 'role': 'assistant'}]