Which of the Following Represents the Best Summary of the Relationship

Which of the following represents the best summary of the relationship between one's environment and the development of their personality traits?

A) Shared environment plays little or no role in adult personality.
B) Personality is almost entirely genetic, despite the fact that many would prefer to believe otherwise.
C) Nonshared environmental factors are exclusively responsible for personality differences between family members.
D) Shared environment plays a strong role in adult personality, but only in siblings who were raised in different homes.