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: Pathology
What is the most common microorganism found in pediatric subacute infec ve endocarditis? 
Select and explain. 
A. Staph aureus, B. Strep viridans, C. E. coli, D. Pneumococci
B: Strep viridans
Answer: B: Strep viridans 
Explanation: .