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: Medicine
[{'content': 'DOC for listeria meningitis - \nSelect and explain. \nA. Ampicillin, B. Cefotaxime, C. Cefotriaxone, D. Ciprofloxacin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer- A. AmpicillinThe antibiotic of choice for listeria infection is ampicillin or penicillin G.', 'role': 'assistant'}]