Which of the following would BEST describe Black Lives Matter's reaction to the cases of Michael Brown and Eric Garner?

A
The movement enlisted the help of major media outlets such as The Washington Post to track police violence more effectively.
B
The movement was created after a California activist posted the words "Our lives matter" in response to videos of police violence.
C
The movement started to demand federal legislation that would make it easier for citizens to sue officers for excessive use of force.
D
The movement grew significantly after videos of police violence against the two men prompted protests around the United States.