The correct answer is D.
When a company decides to outsource some or all its manufacturing activities it seeks to reduce its production costs, because in less-developed countries factors of production are generally cheaper (land, labor, capital), there are less strict legal requeriments for companies, etc. This allows corporations to produce more efficiently and to become more competitive in the international markets.
The employees in the US suffer the consequences when a US company decides to outsource its activities because many lose their jobs as labor costs in the US cannot compete with those from less-developed nations.
Before WWII, there were many racial problems and African Americans were not seen as equals. WWII forced many young men to fight together, regardless of race. This healed broken race relations to a certain extent, but there was still more progress to be made after the war.
