What Is the Relationship Between the Terms Behavior Therapies and Behavior

What is the relationship between the terms behavior therapies and behavior therapy techniques?

A) Behavior therapy refers to the general field of behaviorism and behavior therapy techniques refer to specific therapy interventions.
B) They are essentially synonymous.
C) Behavior therapy techniques were developed first and the field of behavior therapy emerged from their use.
D) Behavior therapy is an informal term used in conversation with clients and behavior therapy techniques is a formal term used in research studies.
E) Behavior therapy emerged first and the behavior therapy techniques stemmed from the therapy.