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: Pharmacology
[{'content': 'All of the following are properties of local anaesthetics EXCEPT : \nSelect and explain. \nA. Blockade of voltage dependent Na+ channels, B. Preferential binding to resting channels, C. Slowing of axonal impulse conduction, D. Increase in the membrane refractory period', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]