This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
[{'content': 'Extended spectrum beta lactamases (ESBLs) are characterized by activity against all except: \nSelect and explain. \nA. Penicillinases, B. Cephalosporinases, C. Oxyimino-cephalosporinases, D. Carbapenems', 'role': 'user'}, {'content': 'Answer: D \nExplanation: CARBAPENEMS: lmipenem :It is an extremely potent and broad-spectrum Beta-lactam antibiotic whose range of activity includes grampositive cocci, Enterobacteriaceae, Ps. aeruginosa, Listeri.', 'role': 'assistant'}]