This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nerve Muscle Physiology, Subject name: Physiology
[{'content': 'Which group of nerve fibre is least susceptible to hypoxia? \nSelect and explain. \nA. A alpha, B. A beta, C. B, D. C', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Susceptibility Most susceptible Intermediate Least Susceptible Hypoxia B A C Pressure A B C', 'role': 'assistant'}]