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': 'True about streptococcus: \nSelect and explain. \nA. Lancefield classification is based on M protein, B. Group ‘G’ not found in human, C. Group ‘B’ causes neonatal meningitis, D. Group ‘C’ can be isolated from vaginal flora', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]