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: Microbiology
[{'content': 'Fermentation of glycerol is the basis classification of: \nSelect and explain. \nA. Neisseria, B. Yersinia, C. Enterbacteriaceae, D. Streptococci', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Yersinia', 'role': 'assistant'}]