According to the Text, the Dodo Bird Verdict ______

According to the text, the Dodo Bird Verdict ______.

A) clearly shows that differences in treatment model do not influence client outcome; therefore, the practitioner should focus attention only upon the common factors
B) has been clearly refuted by the evidence, so the practitioner should focus much more attention upon the evidence about the best model of treatment than focus upon the common factors
C) suggests that practitioners should focus on both common factors and differences in treatment models
D) proves that client outcome is clearly not related either to the common factors or the models of treatment that are offered