What is an argument against using adoption studies for assessing the relative influences of genetics and environment on child development? a. Adoptive parents go through a rigorous screening process, decreasing their diversity. b. Children who are adopted are more likely to feel out of place in their adopted home and community. c. The mere knowledge of knowing they were adopted will alter the behavior of a child. d. Because adoptive parents are under constant scrutiny, they tend to downplay the negative behaviors of their children.