Which of the Following Is Considered a Major Reason Why

Which of the following is considered a major reason why Freud's theory is considered influential?

A) The structures of the personality provide a solid framework for understanding behavior.
B) The importance of sexual motivation can be seen in the media.
C) It provided the framework for understanding the importance of biopsychosocial influences.
D) Freud's reliance on dream interpretation and hypnosis are important techniques used today in the scientific investigation of development.