The Purpose of an Adoption Study Is to Find Out

Multiple Choice

The purpose of an adoption study is to find out if adopted children are more similar to their biological parents and siblings, who share ____________, or to their adoptive parents and siblings, with whom they share ____________.

A) a sense of identity; a common family environment
B) a common family environment; their genes
C) their genes; a sense of identity
D) their genes; a common family environment