This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Pharmacology, Subject name: Pharmacology
[{'content': 'Which of the following parameters signifies the effective drug removal from the body? \nSelect and explain. \nA. Clearance, B. Bioavailability, C. Safety, D. Volume of distribution', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (A) Clearance(Ref: KDT 8th/e p38)Clearance of a drug is the theoretical volume of plasma from which the drug is completely removed in unit time.', 'role': 'assistant'}]