Answer:
Social movements
Step-by-step explanation:
In simple words, A mass movement, also referred to as social movement, can b understood as the loosely structured attempt to accomplish a certain purpose, usually a social as well as political one, through a broad number of individuals. This could be to bring out such a social reform, oppose or reverse it. It is a form of group initiative which may include persons, groups, or both.
Thus, the correct answer is social movement.