What economic practice became popular in the 1920s and eventually contributed to the crash of the stock market? A. paying only cash for stock purchases
C. using credit to purchase stocks
D. sharing insider information on stock trades

b.provides a written record of the transaction

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)

which statement best describes the relationship between the fourteenth amendment and the african american civil rights movement?

political parties are protected under 6th amendment.