Until the 1970s,sociologists Stressed Which of the Following as a Necessary

Until the 1970s,sociologists stressed which of the following as a necessary precondition for nonroutine collective action to take place?

A) a group of people must be economically deprived or socially rootless
B) the norms of a group must be disrupted
C) group members must lose their capacity to act rationally by getting caught up in the supposed madness of crowds
D) all of these choices
E) none of these choices