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: Social & Preventive Medicine
Who among the following discovered small pox vaccination? 
Select and explain. 
A. John Hunter, B. Louis Pasteur, C. Edward Jenner, D. James Lind
C: Edward Jenner
Answer: C: Edward Jenner 
Explanation: Edward Anthony Jenner was an English physician who was the pioneer of smallpox vaccine. He is often called "the father of immunology". Ref: Park, 21st Edition, Page 6.