This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Microbiology
[{'content': 'The differentiating feature of Neisseria gonococcus from Neisseria meningitidis is \nSelect and explain. \nA. Lactose fermentation, B. Maltose fermentation, C. Mannitol fermentation, D. Sucrose fermentation', 'role': 'user'}, {'content': "Answer: B \nExplanation: Gonococci resemble meningococci except that they acidify only glucose and not maltose in serum sugars while meningococci acidify both. Ref: Textbook of microbiology; Ananthanarayan and paniker's; 10th Edition; Pg:234", 'role': 'assistant'}]