This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection, Subject name: Medicine
[{'content': 'Drug of choice in Bacteriodes infection is- \nSelect and explain. \nA. Gentamicin, B. Metronidazole, C. Teacycline, D. Penicillin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Bacteria belonging to the B. fragilis group are clinically the most frequently encountered anaerobic pathogens. Metronidazole has been the drug of choice for the treatment of Bacteroides infection and remains reliable for this use . Ref Harrison20th edition pg 1079', 'role': 'assistant'}]