Combining the Monozygotic and Adoption Study Methods, Researchers Often Study

Multiple Choice

Combining the monozygotic and adoption study methods, researchers often study monozygotic twins raised in different families. Using this method, similarities in behaviors, traits, and psychological disorders between monozygotic twins raised apart helps researchers determine

A) the effects of adoption on a child's psychological functioning.
B) whether it is detrimental to separate twins at birth.
C) whether genes or adoption impact psychopathology.
D) the effects of genes.