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: Dental
[{'content': 'Increases in steroid hormones are associated with significant increases in \nSelect and explain. \nA. Actinomyces viscosus, B. Prevotella intermedia, C. Streptococcus sanguis, D. Campylobacter rectus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]