Which of the Following Statements About Adoption Is TRUE

Which of the following statements about adoption is TRUE?

A) A longitudinal study conducted over 20 years found that minority children placed in White homes often do not develop positive racial and ethnic identities,and they know little of their history and culture.
B) Single men are not allowed to legally adopt children under the age of 12.
C) The research finds that children growing up with same-sex parents are just as happy and well-adjusted as children with heterosexual parents.
D) The number of children adopted internationally was at an all-time high in 2009,but has since leveled off somewhat,except for an increase in the number of children adopted from Guatemala.