Studies Showing That Most of the Therapeutic Improvement of Clients

Studies showing that most of the therapeutic improvement of clients occurs by the 10^th session of psychodynamic therapy were presented to make the argument that

A) traditional long-term psychoanalysis yields significantly better patient outcomes than brief psychodynamic therapy does
B) there is little empirical evidence supporting the psychodynamic concept of resistance
C) interpretations do not appear to be necessary for psychodynamic therapy to be effective
D) brief psychodynamic therapy is a viable and effective alternative to traditional psychoanalysis