The Terms Theory, Model, Approach, and Perspective Often Are Used

The terms theory, model, approach, and perspective often are used interchangeably. However, these terms differ from theories because they

A) lack some of the necessary elements that allow for empirical testing of hypotheses and constructs.
B) are not related to human behavior in the social environment.
C) refer only to psychology or sociology and are not used in social work practice.
D) refer to smaller, more minute details.