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: Pharmacology
Not true about vancomycin is - 
Select and explain. 
A. 95% oral bioavailability, B. Inhibits cells wall synthesis, C. Can be used parenterally as well as orally, D. Indicated for MRSA infections
A: 95% oral bioavailability
Answer: A: 95% oral bioavailability 
Explanation: Ans. is 'a' i.e., 95% oral bioavailability o Vancomycin is not absorbed orally (zero bioavailibility).