Researchers Have Explored Both Genetic Similarity and Shared Family Environments

Multiple Choice

Researchers have explored both genetic similarity and shared family environments to attempt to determine which, if either, has the greater effect on personality. What has this research found?

A) Neither genetics nor shared family environments contributed very much to personality.
B) Genetics do not contribute very much to personality.
C) Shared family environment does not contribute very much to personality.
D) Genetics and shared family environment both contribute equally to personality.