Answer:
It was good that America intervened, it's the main factor that ended World War 1. It was internationally and domestically good because if Germany were to win, it could cause future problems for the USA and all of Europe.
The detrimental was the signing of the Treaty of Versailles, which imposed harsh treaties on Germany which led to World War 2. That war affected everyone around the world.
Should be the establishment of the environmental protection agency
It helped the textile industry because now we could make twice as much in half the amount of time.
Sorry this is kind of late, but the answer is C. Western Europe and Sub-Saharan Africa.
