system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
What is the clearance of a substance, if its concentration in plasma is 10 mg%, concentration in urine is 100 mg % and urine flow is 2 ml/min ?
assistant
The correct answer is  Ans. is 'd' i.e., 20 ml/min.