This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti Microbial, Subject name: Pharmacology
[{'content': 'Drug which is given along with tazobactam and has anti pseudomonas activity: \nSelect and explain. \nA. Amoxicillin, B. Aztreonam, C. Piperacillin, D. Vancomycin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C. PiperacillinPenicillin which are given for pseudomonas infection are carbenicillin, ticarcillin, piperacillin, azlocillin. Piperacillin is drug which is combined with tazobactam for infections.', 'role': 'assistant'}]