Which historical experience directly encouraged the spirit of volunteerism in america?

the rejection of the power of the british monarchy 
the divisions between the north and south during the civil war 
settlers moving into territories lacking government with a need to promote the public good
growth of population over many years due to immigration 

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.

answer: the answer is b

explanation: i just took this quiz last week

literally just took the test, got a 100%. i couldn't be bothered to type it all out, so i just took pictures.

should be in order from q 1 to 35.