This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General, Subject name: Physiology
[{'content': 'Jit equilibrium the concentrations of Cl- inside and outside a cell are 8 mmol/L and 120 mmol/L, respectively. The equilibrium potential for Cl- at 37degC is calculated to be: \nSelect and explain. \nA. +4.07 mV, B. -4.07 mV, C. +71.7 mV, D. -71.7 mV', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D. -71.7mVBy substituting in the Nernst equationEi-Eo=61/-1xlog10120/8=-61x1.176=-71.7mV inside the cell.Note that for Cl-, the value for z (valence) is -1', 'role': 'assistant'}]