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
Pharmacodynamics includes 
Select and explain. 
A. Drug Elimination, B. Drug excretion, C. Drug Absorption, D. Mechanism of action
D: Mechanism of action
Answer: D: Mechanism of action 
Explanation: Pharmacodynamics- the branch of pharmacology concerned with the effects of drugs and the mechanism of their action. Ref-KDT 7/e p1