Answer:
counterculture
Step-by-step explanation:
A counterculture is a subculture that have values and behaviors that are different from the main society and also ways of achieving their goals are different from that of the Major part of the society they find themselves in.
The students for a democratic society ( SDS ) belongs to the Counterculture group because inside the SDS there is a faction that have beliefs that their goals can be achieved through conventional politics which was in direct opposition to what the majority of the group wanted. Majority of the group wanted to achieve their goals through direct action and protest.