This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Physiology
[{'content': 'Resting membrane potential of a neuron is \nSelect and explain. \nA. -9mV, B. -50mV, C. -70mV, D. -100mV', 'role': 'user'}, {'content': 'Answer: C \nExplanation: In neurons, the resting membrane potential is usually about - 70mV, which is close to the equilibrium potential for K+. Because there are more open K+channels than Na+ channels at rest Ref: Ganong&;s Review of medical physiology;25th edition; pg: 90', 'role': 'assistant'}]