Three Foci of Leta Stetter Hollingsworth's Work Were

Three foci of Leta Stetter Hollingsworth's work were:

A) clinical psychology, the psychology of women, and professionalization.
B) purposive psychology, industrial psychology, and the psychology of women.
C) motion study research, clinical psychology, and the psychology of women.
D) professionalization, opening the first psychology clinic, and the psychology of women.