According to Research Examining the Relationship Between Genotype and Environment

Multiple Choice

According to research examining the relationship between genotype and environment to intellectual abilities, which of the following pairs of individuals will be MOST similar in intelligence?

A) Casey and Jordan, who are biological siblings
B) Eileen and Sarah, who are mother and daughter
C) Hugh and Connor, who are grandfather and grandson
D) Maleeka and Chantel, who are adopted siblings