Why did the US benefit so much from WWI?

World War I led to an economic and industrial boom, as factory owners known as "Merchants of Death" made billions off of supplying the Allies war effort. It created a vibrant middle class in this country that would strengthen all the way through the 1920s.

i am not 100% positive but i think it is is b. both are non-partisan jobs

i am pretty sure that members of congress have term limits, can be impeached, and are nominated through direct popular vote.