Which Statement,made by a 4-Year-Old Child's Father,is True About the Care

Which statement,made by a 4-year-old child's father,is true about the care of the preschooler's teeth?

A) "Because the 'baby teeth' are not permanent, they are not important to the child."
B) "My son can be encouraged to brush his teeth after I have thoroughly cleaned his teeth."
C) "My son's 'permanent teeth' will begin to come in at 4 to 5 years of age."
D) "Fluoride supplements can be discontinued when my son's 'permanent teeth' erupt."