After world war i, the ku klux klan expanded its efforts to include attacks on

If for pchs, all of the above (jews, catholics, immigrants)

labor leaders and organizations had the power to demand it.

explanation:

workers got a five-day workweek because the bcea protects and respect the rights of the employees. labor leaders and other groups demanded it.

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.