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
The first community Water Fluoridation was carried out in: 
Select and explain. 
A. 1945, Colorado, B. 1945, Grand Rapids, C. 1945, Oak Park, D. 1945, Evanston
B: 1945, Grand Rapids
Answer: B: 1945, Grand Rapids 
Explanation: None