This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Anatomy
Select the antimicrobial agent that can be used to treat both methicillin resistant and vancomycin resistant staphylococcus aureus infection 
Select and explain. 
A. Clarithromcycin, B. Clindamycin, C. Linezolid, D. Lincomycin
C: Linezolid
Answer: C: Linezolid 
Explanation: Ref-KDT 6/e p733 Linezolid is a prescription drug used as an antibiotic to treat ceain serious bacterial infections. It works by stopping the growth of bacteria. Linezolid treats only bacterial infections. It will not work for viral infections (such as common cold, flu