This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Anatomy
[{'content': "Rate of elimination of a new drug is 20mg/hr it is steady state plasma concentration of 10mg/L, then it's renal clearance will be \nSelect and explain. \nA. 0.5L/hr, B. 2.0L/hr, C. 5.0L/hr, D. 20L/hr", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ref-Katzung 10/e p35 Clearance=Rate of elimination/plasma concentration 20mg/hr /10mg/L =2L/hr', 'role': 'assistant'}]