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: Pediatrics
[{'content': 'Haemophilus influenzae has been isolated from the CSF of two year old boy suffering from meningitis. The strain is beta–lactamase producing and resistant to chloramphenicol. The most appropriate antimicrobial in such a situation is – \nSelect and explain. \nA. Trimethoprim–sulfamethoxazole combination, B. Ciprofloxacin, C. Third–generation cephalosporin, D. Vancomycin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: ANTIMICR BIALT RAPY. IF CNS ACTERIAL INFECTI NS BASED N PATHOGENa', 'role': 'assistant'}]