Which of the Following Is an Assumption of the Biological

Which of the following is an assumption of the biological theories of personality?

A) Humans naturally strive to overcome their inherent inferiorities or deficiencies, both physical and psychological.
B) One's personality resides in the unconscious and early childhood experiences lay the foundation for adult personality.
C) People naturally strive toward growth and fulfillment and need unconditional positive regard for that to happen.
D) Differences in personality are partly based in differences in structures and systems in the central nervous system.