War finance, fiscal and monetary methods that are used in meeting the costs of war, including taxation, compulsory loans, voluntary domestic loans, foreign loans, and the creation of money.
On 5, Plessy v. Ferguson ruled that segregation is legal, but in Brown v. Board of Education, they ruled that segregation is not legal and has no place in schools. But that is all I know
It's B. The Columbian Exchange is just that, the exchange of goods, plants, people, etc. between Europe and the Americas