Conflict theorist believe that

a. social life is a struggle between those who possess and those who do not.

b. people with power commit deviant acts to maintain their position.

c. the ruling class labels any behavior that threatens their power base as deviant.

d. all of the above

Conflict theorist believe that the ruling class will likely label any behavior that could threaten their own power base as a deviant. They also believe that an individual’s social life is a struggle with those people who exhibits it and does who do not and that people who can commit deviant acts because they have the power does it to maintain their position. So the answer is letter d.