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': 'Hyponatremia has no effect on the RMP (resting membrane potential) because \nSelect and explain. \nA. The cell membrane is impermeable to Na+, B. ECF Na+ concentration is high, C. Intracellular K+ concentration is high, D. Equilibrium potential for Na+ is +60 mV', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Resting membrane potential depends on the concentration of potassium ion and not on sodium ion. (REF TEXTBOOK OF MEDICAL PHYSIOLOGY GEETHA N 2 EDITION, 23)', 'role': 'assistant'}]