Which of the followings can be said to be true for Freud's theory of personality?

A. Focused almost entirely on female development

B. Whatever research has been conducted tends to discredit Freud’s theory

C. Freud’s theory is based upon case studies and not empirical research.

D. Freud used the term Oedipal for both sexes, but other analysts proposed the female variant to be referred to as “Electra complex”