All of the Following Are Reasons Stated in the Textbook

All of the following are reasons stated in the textbook to explain why adolescent autonomy has attracted the attention of developmental psychologists, except:

A) the physical changes of early adolescence trigger changes in the adolescent's emotional relationships at home.
B) puberty sets up a situation of the adolescent's increasing emotional dependence on the family.
C) the cognitive changes of adolescence provide the foundation for changes in the adolescent's thinking about social, moral, and ethical problems.
D) changes in social roles raise concerns about independence relating to increased responsibility and self-reliance.