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: Pharmacology
[{'content': 'At 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 37oC is calculated to be (NOT RELATED) \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: Nernst equation Ei - Eo = 61/-1 x log10 120/8 = -61 x 1.176 = -71.7 mV inside the cell. Note that for Cl-, the value for z (valence) is -1', 'role': 'assistant'}]