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
Community water fluoridation is important because 
Select and explain. 
A. All groups of socio economic status have accessibility to it, B. Does not pose a health hazard, C. Leads to decrease in the dental caries incidence, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: None