Which leader in the Civil Rights movement made this statement?

This is the twenty-seventh time I have been arrested - and I ain't going to jail no more! We been saying freedom for six years - and we ain't got nothin'. What we're gonna start saying now is BLACK POWER!

A) Medgar Evers
B) Floyd McKissick
C) Stokely Carmichael
D) Dr. Martin Luther King Jr.