Which of the following is a way in which contemporary psychodynamic therapy differs from classic psychoanalysis?

A. Contemporary psychodynamic therapy generally lasts longer than classic psychoanalysis.
B. Classic psychoanalysis takes a more active role than contemporary psychodynamic therapy.
C. Classic psychoanalysts concentrate on an individual's current relationships and specific concerns, whereas contemporary psychodynamic therapists do not.
D. Contemporary psychodynamic therapists put less emphasis on a patient's past history and childhood, whereas classic psychoanalysts put more emphasis on it.