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': 'Methicillin resistant Staphylococcus aureus is not expected to respond to - \nSelect and explain. \nA. Aminoglycoside, B. Lincosamide, C. Oxazolidinone, D. Carbapenem', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Carbapenem o MRSA do not respond to any beta lactam antibiotic (penicillins, cephalosporins, carbapenems and monobactams) because it has altered penicillin binding sites.", 'role': 'assistant'}]