In the History of Psychology and Social Psychology, the Late

In the history of psychology and social psychology, the late 1800s and early 1900s marked ____.

A) the very first social psychological experiments
B) the era in which social psychology came into its own-breaking away from behaviorism and Freudian psychoanalysis
C) the beginnings of research in social cognition
D) the beginnings of research in social neuroscience