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': 'Normal glomerular filtration rate is ? \nSelect and explain. \nA. 50 ml/min, B. 125 ml/min, C. 250 ml/min, D. 500 ml/min', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., 125 ml/minIn man, resting glomerular filtration rate is about 125 ml/min (180L/day), the renal plasma flow being about 600 ml/min.Thus about one-fifth (20%) of plasma passing through kidney is filtered, i.e., fraction of renal plasma flow that is filtered (filtration fraction) is 0.2.", 'role': 'assistant'}]