Differences in the rates of development between boys and girls are most noticeable between ages
a. 6 and 8.
b. 10 and 12.
c. 5 and 6.
d. 8 and 10.

According to the national health and safety standards: guidelines for out-of-home care, what is the proper adult-to-child ratio for children younger than one year? a. one adult to one child b. one adult to two children c. one adult to three children d. one adult to four children