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: Surgery
[{'content': 'Sensitivity to local anaesthetics is greater in \nSelect and explain. \nA. Type B fibres, B. Type C fibres, C. Type A delta fibres, D. Fibres supplying the muscle spindles', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]