This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
Branch of Pharmacology that deals with medicinal drugs obtained from plants and other natural sources is known as 
Select and explain. 
A. Pharmacognosy, B. Pharmacogenomics, C. Pharmacopoeia, D. Chronopharmacology
A: Pharmacognosy
Answer: A: Pharmacognosy 
Explanation: .