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
Which of the following gives the rate of drug absorption in plasma concentration graph? 
Select and explain. 
A. Tmax and Cmax, B. Area under the curve, C. Tmax alone, D. Cmax alone
A: Tmax and Cmax
Answer: A: Tmax and Cmax 
Explanation: Ans: A. Tmax and CmaxRef: Sharma & Sharma's Principles of Pharmacolog, j'd ed., pg. 30-31 and hup:// whrw. e a r op e a n r ev i ew. o r g/wp /wp - c o n t e nt/ up I o a d s/6. p df .From the plasma concentration graph, we obtain three impoant parametersCmax is the peak plasma concentrationTmax i.e. time to attain the peak plasma concentration or CmaxAUC (Area under the curve) of plasma concentration time graphThe 1st two parameters i.e. Cmax and the Tmax are the indicators of the rate of absorption.