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: Unknown
[{'content': 'Peripheral nerve regenerates at a rate of \nSelect and explain. \nA. 0.2 mm/day, B. 1 mm/day, C. 2 mm/day, D. 0.5 nun/day', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The axonal regeneration proceeds slowly at rate of 1-2 mm/day in human.', 'role': 'assistant'}]