This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pain Physiology, Subject name: Physiology
[{'content': 'Pain is carried by which nerve fibers- \nSelect and explain. \nA. Aa, Ab, B. Aa, Ag, C. Ad, C, D. Ag, C', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Ad, C o Type A fibers# A a - Proprioception, somatic motor (extrafusal fibers of muscle spindle).# A b - Touch, pressure, kinesthetic# A g - Motor to intrafusal fibers of muscle spindle# Ad - Pain, temperature, touch, pressureo Type B fibers - Preganglionic autonomico Type C fibers - Pain, temperature, Postganglionic autonomic (mainly sympathetic)", 'role': 'assistant'}]