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
Bacteria associated with caries are able to cause the same due to: 
Select and explain. 
A. Production of extxacellular polysaccharides like dextrans and levans, B. Production of acid to hydrolyse diet carbohydrates, C. Production of enzymes which inhibit normal flora, D. Inhibition of secretory IgA
A: Production of extxacellular polysaccharides like dextrans and levans
Answer: A: Production of extxacellular polysaccharides like dextrans and levans 
Explanation: None