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': 'Sharp pain is transmitted by which type of fibers \nSelect and explain. \nA. Aa, B. Ab, C. Ad, D. C', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Sharp pain is transmitted by A delta nerve fibres Ref: guyton and hall textbook of medical physiology 12 edition page number: 698,699,700', 'role': 'assistant'}]