Roots of Personality Psychology Can Be Traced to the Theater

Roots of personality psychology can be traced to the theater because

A) actors often portray "characters" or easily recognizable types of people.
B) Shakespeare was Freud's best (most insightful) disciple.
C) actors have always been considered celebrities.
D) early studies utilized theater-goers as subjects (easily available) .
E) drama is an ancient art.