Black Lives Matter Is a Loose-Knit, African American Civil Rights

Black Lives Matter is a loose-knit, African American civil rights interest group that came to life through the use of the social media hashtag (#blacklivesmatter) after the acquittal of George Zimmerman, an Orlando, Florida area neighborhood watch volunteer, in the shooting death of a black teenager, Trayvon Martin.Despite its Internet origins, people associated with the group often engaged in the oldest form of going public in trying to bring attention to racism and the killing of young black men.This form was:

A) writing amicus curiae briefs in support of other civil rights groups in cases going before the Supreme Court.
B) protesting, which can include taking part in marches, rallies, and sit-ins.
C) violent resistance to authority.
D) grassroots campaigning.