kyle puts a lot of pressure on himself to get outstanding grades. his roommate tells him that he needs to find better ways of coping with that stress than by being depressed and angry all the time. but kyle only shouts at his roommate to leave him alone so he can study. the roommate can see that kyle is so consumed by trying to get a perfect gpa that he has stopped going to the gym, is ignoring his former friends, and is living on nothing but chips and coffee. the roommate sees these as symptoms that kyle's primary difficulty falls in which domain?