This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
[{'content': 'All the following cephalosporins have significant activity against Pseudomonas Species except \nSelect and explain. \nA. Cefoperazone, B. Ceftazidime, C. Cefotaxime, D. Cefepime', 'role': 'user'}, {'content': "Answer: C \nExplanation: CephalosporinsActivity against PseudomonasCefoperazoneSome activityCeftazidimeMost activeCefotaximeNo activityCefepimeReasonable activity(Ref:Harrison's 17/e p952, 18/e p1269, table 152-2)", 'role': 'assistant'}]