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
Which of the following bacteria is responsible for progression of dental caries: 
Select and explain. 
A. Actinomyces spp., B. Proteolytic bacteria, C. Acidogenic bacteria, D. Gram positive bacteria
B: Proteolytic bacteria
Answer: B: Proteolytic bacteria 
Explanation: None