One reason that psychologists abandoned the view of instinct as a universal explanation of human behavior is that
a. Freud's popular theory rejected the importance of instinct.
b. there had been little success in generating a list of human instincts.
c. the behaviorist influence began to diminish in the 1920s.
d. cross-cultural studies found enormous behavioral variation.
Answer: d. cross-cultural studies found enormous behavioral variation.
Psychology