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
Branch of pharmacology that deals with medicinal drugs that are obtained from plants and other natural resources are known as 
Select and explain. 
A. Pharmacognosy, B. Pharmacogenetics, C. Pharmacogenomics, D. Pharmacopoeia
A: Pharmacognosy
Answer: A: Pharmacognosy 
Explanation: Ref-K.K.Sharma 2nd/4 Defination