D) The daily struggle of child laborers leads to the wealth of stockbrokers.
Answer:
Cultural Structure.
Explanation:
The Five Civilized Tribes refers to the five Native American nations—the Cherokee, Choctaw, Chickasaw, Creek (Muscogee), and Seminole. These were the first tribes that were considered to be "civilized" by the European settlers. The tribes each adopted Christianity, literacy, intermarriage (with white Americans), centralized governments, plantation slavery practices, etc.
One of the reasons why stock bought on margin is considered a risky investment is because "Investors purchased the stocks with little cash down," meaning that they had to borrow the remained of the money.