The Text's Authors Believe That an Underlying Factor in the Divide

The text's authors believe that an underlying factor in the divide between clinical science and clinical practice is that

A) effective therapists have good outcomes regardless of their approach, thus they tend to resist manualized treatment protocols, even though they are evidence-based.
B) clinicians often don't understand the nature of the research being conducted on treatment efficacy.
C) both of the above
D) neither of the above