Research Has Shown That, Compared to Children Being Raised by Two

Research has shown that, compared to children being raised by two genetic parents, adopted children

A) receive more investment from their adoptive parents.
B) receive more preschool education, private tutoring, summer school, rent, and personal loans from their adoptive parents.
C) have psychological outcomes that are often less positive than those of biological children.
D) receive about as much investment from their adoptive parents as from stepparents.