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': 'Which strain of streptococci is implicated in neonatal meningitis is: \nSelect and explain. \nA. Group-A, B. Group-B, C. Group-C, D. Group-D', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Group-B', 'role': 'assistant'}]