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: Pharmacology
True about first order kinetics is - 
Select and explain. 
A. Dose dependent elimination occurs, B. Rate of elimination decrease with increase plasma concentration, C. Rate of elimination does not depend on plasma concentration of drug, D. Clearance is constant
D: Clearance is constant
Answer: D: Clearance is constant 
Explanation: Ans. is 'd' i.e., Clearance is constant Clearance is constant in first order kinetics