South Carolina used slaves for the same reasons every other state used them for. It helped save them money,
For example, they have to pay someone for work but they used African Americans as slaves by forcing them into labor and not paying them. Resulting in saving of money
So it was important to South Carolina to help save money as well as pick cotton for other important uses.
D is your answer for this
You should look up Progressivism. Progressivists dealt with a lot of reforms in the early 1900s.
Alternatively, try looking up “US health bills since 1900.” If you need a starting point, look up the Pure Food and Drug Act/Meat Inspection Act (both in 1906) and Upton Sinclair’s “The Jungle,” which had a particularly large impact on meat inspection.
Answer:
businesses, and governments want to buy and what they want to sell. ... The long-run effects of tax policies thus depend not only on their incentive ... how much of the future income from that investment goes to US residents. ... those that improve incentives to work, save, invest, and innovate without driving up
