In the Context of the Origins of Personality, Which of the Following

In the context of the origins of personality, which of the following is true of shared environment?

A) Research indicates that the shared environment seems to matter the most in the personality development of a child.
B) Personality is influenced by the experiences one shares with one's peer group influences.
C) It consists of things like birth order, different parents, different friends, different teachers, and different social groups.
D) It consists of living conditions that people have in common, such as the same parents, same schools, or same peers.