This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory, Subject name: Medicine
Percussion was discovered by? 
Select and explain. 
A. Leanacc, B. Leopald Aunbruger, C. Jenner, D. C. Bernard
B: Leopald Aunbruger
Answer: B: Leopald Aunbruger 
Explanation: Ans. b (Leopald Aunbruger)NAME ~DISCOVERYLaennecStethoscopeLeopald AunbrugerPercussionJennerSmall pox vaccineChristian BernardCardiac transplant