This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'Insulin clearance measures _______ \nSelect and explain. \nA. 135 ml / min, B. 90 ml / min, C. 625 ml / min, D. 125 ml / min', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Insulin is only filtered it is neither secreted nor reabsorbed.\nHense Insulin clearace = GFR\n\xa0 \xa0 \xa0= 125 \xa0ml / min', 'role': 'assistant'}]