Which of the following areas of study have been instrumental in shaping the development of HCT?

industrial design

geography

psychology

microbiology

cognitive science

graphic design

Cognitive Science and Graphic Design.

and hence D and E options are correct.

Explanation:

By HCT we mean Home and Community-based Treatment. This is, in fact, a home-based behavioral health-related service for the young people and all families which seek a better treatment plan, that is more advanced apart from an emergency therapy. And as far as the HCT's are concerned, they have well trained in quite a good number of treatment procedures like Cognitive Science related procedures. trauma centric cognitive treatment. However, a little bit of Arts and creativity is also required, and hence, you should know about the graphic design also.