Jeffrey, Who Is an Adopted Child, Has Some Characteristics That

Multiple Choice

Jeffrey, who is an adopted child, has some characteristics that are more similar to his natural parents than to his adoptive parents. What is the most appropriate conclusion?

A) The adoptive parents have not included him in their family cultural activities.
B) Heredity plays a diminished role in the formation of personality.
C) Environment influences who we are and who we become.
D) Genetics play a role in the development of certain human characteristics.