What made the american federation of labor (afl) different from the knights of labor (kol)? a. the kol did not hold strikes while the afl used them frequently to promote change. b. the afl was more radical in its call for socialism while the knights of labor still supported capitalism. c. the afl did not worry about its public image as much the knights of labor did and was more open to radical movements. d. the afl only accepted skilled workers, while the kol represented both skilled and unskilled laborers.