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: Physiology
[{'content': 'Myelination in peripheral nervous system is done by- \nSelect and explain. \nA. Astrocytes, B. Oligodendrocytes, C. Ependymal cells, D. Schwann cells', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Schwann cells * Myelination in central nervous system - Oligodendrocytes* Myelination in peripheral nervous system - Schwann cell", 'role': 'assistant'}]