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
A 5-year old child is recommended the following fluoride dentifrice regimen 
Select and explain. 
A. Fluoride tooth paste not recommended, B. Brushing 3 times with fluoride tooth paste, C. Once with fluoride paste and two times with normal paste., D. Brushing twice with fluoride tooth paste and once with normal paste
C: Once with fluoride paste and two times with normal paste.
Answer: C: Once with fluoride paste and two times with normal paste. 
Explanation: None