Answer:
I think it is c not 100%sure tho
It would be the "Executive Branch" of government that has the power to pardon people found guilty of federal crimes, since this power lies solely with the President of the United States.
One such event would be the famous March on Washington, which took place in 1963 and included a speech by Martin Luther King Jr. It showed that African Americans were taking matters into their own hands when it came to obtaining jobs and freedom.