This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous System, Subject name: Anatomy
[{'content': 'Notochord forms which part in postnatal life - \nSelect and explain. \nA. Smooth muscles, B. Anterior longitudinal ligament, C. Nucleosus pulposus, D. Eustachian tube', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Nucleosus pulposus o After development of verteral bodies, the notochord degenerates and disappears but persists as the nucleus pulposus of intervertebral disc.", 'role': 'assistant'}]