It become a concern of the military planners due to the high casualty the marines suffered during the taking of Iwo Jima. Also the battle proved that even though the battle was an American Victory the Japanese army is prepared to die defending and willing to wage a suicide attacks even though they already know that they lost the war. That also attacking the Japanese Home Islands would be a costly attack of lives of american soldiers and the new strategy develop in Iwo Jima would be an arduous battle if the Americans would invade the Japanese Island with the Japanese people that is already to prepare to die fighting.
B. Progressivism
A political movement that crossed party lines which believed that industrialism and urbanization had created many social problems and that governments should take a more active role in dealing with these problems.
Why ask the question just to self explain it?
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.