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: Pathology
[{'content': 'Which of the following organisms is found in deep carious lesions rather than in incipient lesions? \nSelect and explain. \nA. Streptococci, B. Lactobacilli, C. Veillonella, D. Bateroides', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]