Surveys of highly successful therapists have reported that these therapists consistently try to promote self-mastery in their clients. From this finding, one can conclude that this technique:

A) should be incorporated into all treatment approaches for all disorders.
B) may help promote successful therapy outcomes in clients.
C) should be included in the treatment for specific disorders.
D) is a significant contributor to client improvement.

The conclusion that can be drawn from the surveys is that promoting self-mastery may help in achieving successful therapy outcomes, as it is a technique consistently used by highly successful therapists. This does not necessarily mean it should be incorporated into all treatment approaches for all disorders, is only relevant for specific disorders, or is the significant contributor to client improvement, but rather that it may be beneficial.