Erikson viewed Freud's formulation of stages as incomplete in at least four ways. Which of the following is NOT one of these:
a) Erikson emphasized the role of social and cultural factors more than Freud.
b) Erikson proposed additional stages beyond Freud's developmental stages.
c) Erikson disagreed with Freud's emphasis on unconscious drives and conflicts.
d) Erikson rejected the concept of the Oedipus complex as proposed by Freud.