Which of the Following Statements About Peer Groups and Peer

Which of the following statements about peer groups and peer interactions in middle and late childhood is TRUE?

A) Children in middle and late childhood spend approximately 30% of their time with peers.
B) The size of the peer group decreases with the age of the child.
C) Children under 12 years of age prefer mixed-sex peer groups to same-sex peer groups.
D) As children move through middle and late childhood, peer interactions are more closely supervised by adults.