During the Summer of 2009,two Groups in Lincoln,Nebraska,held Rallies About

Multiple Choice

During the summer of 2009,two groups in Lincoln,Nebraska,held rallies about health care,one supporting and one opposing legislation proposed to overhaul America's health-care system.At one point,the two groups went beyond holding signs and shouting slogans and tempers flared.Objects were thrown,shoving occurred,and the police had to step in to break up the

A) social movement.
B) riot.
C) rally.
D) march.