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
[{'content': 'TRUE statement regarding vancomycin is : \nSelect and explain. \nA. It is bacteriostatic, B. It has the advantage of high oral bioavailability, C. It is not susceptible to penicillinases, D. Staphylococcal enterocolits occurs commonly with its use', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]