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': 'All of the following are anti-pseudomonal EXCEPT: March 2013 \nSelect and explain. \nA. Piperacillin, B. Cefoperazone, C. Ceftazidime, D. Cefadroxil', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D i.e. Cefadroxil Spectrum of Cefadroxil Good gram (+)ve (Streptococcus pyogenes (GAS), Staphylococcus) Gram (-)ve (Proteus, E. coli, Klebsiella)', 'role': 'assistant'}]