Sociologists using conflict perspective might study what?
how social movements develop
what social purposes a movement serves
what motivates inequitably treated people to join a movement
what individuals hope to gain from taking part in a social movement

The correct answer is C. What motivates inequitably treated people to join a movement

Explanation:

In sociology or the study of human societies, the Conflict Theory is a theoretical perspective that states in society there is inequality or social classes and groups of people that have power over others. Additionally, according to this perspective, these differences create conflict due to the competition for power and resources which lead to social movements in which people associates to lead a social change including a change in power and accessibility to resources. Because of this if a sociologist uses this perspective in relation to social movements he or she might study "What motivates inequitably treated people to join a movement" because this perspective focuses on socials inequality and the way this encourages people to join a movement.

answer; john stuart mill's principle of utility is your answer; /// good luck