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
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: Ans. is 'd' i.e., Mechanism of action Pharmacodynamics is the study dealing with effect of drugs on body. It includes action of drugs as well as their mechanism. o Drug absorption, excretion and elimination are studied under pharmacokineties (option a, b & c).