This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharmacokinetics, Subject name: Pharmacology
Which of the following parameter is used to assess the rate of drug absorption 
Select and explain. 
A. Tmax, B. Cmax, C. Half life, D. Area under the curve
A: Tmax
Answer: A: Tmax 
Explanation: * Cmax - maximum plasma concentration of a drug that can be obtained after giving a paicular dose. Depends on dosage * AUC - Area under curve tells the EXTENT OF ABSORPTION * Tmax - Time in which concentration become maximum. tells the RATE OF ABSORPTION