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: Pharmacology
Scientist who is considered as father of modern pharmacology 
Select and explain. 
A. Ram Nath Chopra, B. Oswald Schmiedeberg, C. David Sackett, D. Paul Ehrlich
B: Oswald Schmiedeberg
Answer: B: Oswald Schmiedeberg 
Explanation: Oswald Schmiedeberg is father of modern Pharmacology. Sir Ram Nath Chopra-father of Indian pharmacology, David Sackett is father of evidence-based medicine. Paul Ehrlich -father of chemotherapy