This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
Most common infection in patients with prosthetic valves is- 
Select and explain. 
A. Pneumococcus, B. Pseudomonas, C. Staphylococcus, D. Enterococci
C: Staphylococcus
Answer: C: Staphylococcus 
Explanation: Most common infection in patients with prosthetic valves is infective endocarditis by staphylococcus Ref Davidson 23rd edition pg 450