Civil Disobedience,rioting,strikes,and Other Disruptions Intended to Force Institutions to Negotiate

 Civil disobedience,rioting,strikes,and other disruptions intended to force institutions to negotiate 

A)  are the last resort of extremists. 
B)  have a long history in the United States, but are less common now. 
C)  have a long history in the United States and have become more common recently. 
D)  have only been seen since the 1960s. 
E)  are not as effective.