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: Microbiology
Resistance of Staphylococcus aureus is due to: 
Select and explain. 
A. Pleomorphism, B. Elaboration of an enzyme that destroy penicillin, C. Penicillin analogue production, D. Lack of nucleic acid in the cell wall
B: Elaboration of an enzyme that destroy penicillin
Answer: B: Elaboration of an enzyme that destroy penicillin 
Explanation: None