This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Medicine
Acute endocarditis with abscess is most commonly associated with? 
Select and explain. 
A. Listeria, B. Staphylococcus, C. Streptococcus, D. Enterococcus
B: Staphylococcus
Answer: B: Staphylococcus 
Explanation: Ans. (b) StaphylococcusRef: Harrison's 18th ed ch:124, Braunwald's HeartDisease: A Textbook of Cardiovascular Medicine 18thed ch-63