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': 'Remnant of notochord is ? \nSelect and explain. \nA. Annulus fibrosus, B. Nucleus pulposus, C. Ligament flavum, D. Interansverse ligament', 'role': 'user'}, {'content': 'Answer: B \nExplanation: After development of veeral bodies, the notochord degenerates and disappears but persists as the nucleus pulposus of interveebral disc.', 'role': 'assistant'}]