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': 'Virulence factors for meningococci -a) Capsuleb) Pili c) Endotoxind) Coagulasee) M. Protein \nSelect and explain. \nA. ac, B. abc, C. ade, D. bc', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Virulence factor of Meningococcus:\n\nRefer text (chapter review) for explanation:\nOption d: Coagulase is a Virulence factor for Staphylococcus\nOption e: M protein is a Virulence factor for Streptococcus.\n\nRef: Apurba Sastry’s Essentials of Medical Microbiology 1/e p236', 'role': 'assistant'}]