This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
[{'content': 'Local anesthetics act by \nSelect and explain. \nA. Forming area of nerve block along a neuron, B. Binding to calcium receptor on nerve membrane, C. Blocking calcium channels of nerve membrane, D. Inhibiting the sodium pump', 'role': 'user'}, {'content': 'Answer: D \nExplanation: .', 'role': 'assistant'}]