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
Local anesthetics act by 
Select and explain. 
A. 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
D: Inhibiting the sodium pump
Answer: D: Inhibiting the sodium pump 
Explanation: .