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
Water irrigating devices are most useful in 
Select and explain. 
A. Removing plaque, B. Preventing plaque formation, C. Diluting bacterial products, D. Reducing periodontal pockets
C: Diluting bacterial products
Answer: C: Diluting bacterial products 
Explanation: None