what made the american federation of labor different from the knights of labor

Question

the KOL did not holde strikes while the AFL used them frequently to promote change
the AFL was more radical in its call for socialism while the knights of labor still supported capitalism
the AFL did not worry about its public image as uch the KOL did and was more open to radical movements
the AFL only accepted skilled workers while the KOL represented both skilled and unskilled laborers

Answer 1

The AFL only accepted skilled workers while the KOL represented both skilled and unskilled laborers.