According to the Text, All of the Following Are True

According to the text, all of the following are true about U.S. social movements except

A) they arise in response to changes in the political environment that create new political opportunities.
B) they develop a sense of moral legitimacy and empowerment among participants.
C) they create "free spaces" to develop alternatives to the mainstream culture.
D) they continually narrow the scope of political conflict so as to restrict the range and number of social movement participants.
E) they begin with narrow demands that escalate and radicalize members.