B- United Nations was formed in 1945 to promote international order
Economically it had a positive impact on the South, it allowed their economy not to be solely reliant on agriculture. However, as far as their society goes there wasn't a change in their belief system in their stance on African Americans. Many still considered them as second citizens until the Civil Rights Movement.
Success in trade always deals with advertisement. In this case, the spread of Islam help distribute it's teachings and beliefs making more people contribute to trade.
In general, Britain sought to correct its balance of trade with China by decrease its exports and increasing Chinese imports. This angered many merchants in Britain.
Did the US need to drop the atomic bomb on Japan in order to win the war?
Do you think it was necessary to kill so many Japanese civilians with the atomic bomb in order for Japan to surrender?