The league of nations
a)
was supported by president wilson, but rejected by the senate.
b)
was created to stop the spread of communism following world war ii.
c)
was established prior to wwi but proved incapable of preventing the war.
d)
had widespread popular support in the us but was rejected by president wilson.

(d) rivers.

explanation:

civilizations developed around rivers because their waters provided places to hunt and fish. also, as the rivers flooded, the lands around them became fertile. this allowed them to support farming. this is especially true of the nile river, which flooded the same time each year.

mass production/ assembly line production