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': 'Inulin clearance is equal to - \nSelect and explain. \nA. 55 ml / min, B. 625 ml / min, C. 125 ml / min, D. 40 ml / min', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. 125 ml /min', 'role': 'assistant'}]