Which of the following explains why jazz music gained popularity in the United States in the 1920s? A
American soldiers who fought in France during World War I learned about jazz from European musicians.
B
African American musicians from the South migrated to northern cities where more people could hear their music.

C
New industrial techniques made possible the mass production of the special musical instruments needed to play jazz.

D
Mass immigration from southern and eastern Europe brought new cultural forms, including jazz music, to the United States.

a.

congress passed laws allowing for free passage between states.

both are true, the congress does have the power to create banks, even if this power is not specifically described in the constitution, since there is nothing restricting it and there is power given to the congress to make "all laws which shall be necessary and proper". maryland was not allowed to tax a branch of the national bank operating there, and the supreme court decided that no state could. both of these topics were discussed in a decision of the mcculloch v. maryland case in 1819.

i see, would you mind putting it as one?

i dont no the claim so it's hard to answer but i think he would go to the people to decide. : ) ; )