Answer: D - The creators of the DSM keep releasing new editions of the manual to incorporate new information, to incorporate changes in the way abnormal behaviors are viewed, and to change the descriptions and categories. Scientific research on new disorders is ongoing, and information from this research needs to be added. Societal changes about the way we think of abnormal behaviors occur regularly, and these changes need to be reflected in the language of the manual. Finally, the list of disorders keeps expanding, creating a need for changes in the descriptions of disorders and the categorization of disorders.
