This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Which of the following parameter signifies the effective drug removal from the body \nSelect and explain. \nA. Clearance, B. Bioavailabilit, C. Safety, D. Volume of distrubtion', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref-KDT 70e/30 Clearance of the drug is the theoretical volume of Plasma from which drug is removed from the body in unit time', 'role': 'assistant'}]