This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
[{'content': 'RMP of nerve cell is equal to which ion&;s equilibrium potential? \nSelect and explain. \nA. K+, B. Cl-, C. Na+, D. Ca+', 'role': 'user'}, {'content': 'Answer: B \nExplanation: RMP of nerve cell is equal to - 70mV. (REF: GANONG&;S REVIEW OF MEDICAL PHYSIOLOGY 24 EDITION, PAGE NO - 88)', 'role': 'assistant'}]