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: Medicine
Most common catheter induced blood infection is due to - 
Select and explain. 
A. Staphylococcus aureus, B. Coagulase negative staphylococci, C. Gram negative bacilli, D. Candida
B: Coagulase negative staphylococci
Answer: B: Coagulase negative staphylococci 
Explanation: None