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': 'The mechanism of action of local anaesthetics is that they act on Na+ channels in their : \nSelect and explain. \nA. Activated state, B. Inactivated state, C. Resting state, D. Any state', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]