The National Center for Infants,Toddlers,and Families Has Identified All of the Following

The National Center for Infants,Toddlers,and Families has identified all of the following as necessary to ensuring high-quality child care except

A) maintaining small groups.
B) providing a stimulating physical environment.
C) providing time alone,so children can introspect appropriately.
D) assigning each infant to a primary caregiver.