Albert Bandura's Work in Personality Psychology and Social Cognitive Theory

Albert Bandura's work in personality psychology and social cognitive theory has significantly shifted perspectives on learning and behavior. What was his conclusion from the 1961 Bobo doll experiment?

A) That aggression is largely learned through observation and imitation
B) That aggression is largely innate, but is fostered by environment
C) That aggression is a result of unhealthy same-sex relationships in childhood
D) That males and females are equally inclined towards aggression, but social pressures impact each group's expression of the trait