Push factors: Hunger in eastern Europe and Russia forced immigrants to emigrate People in poorer countries were often forced into slave labor Immigrants came from countries with little or no government system Pull factors: The united states had many jobs for immigrants the United States had a democratic government The united states was viewed as the land of the free hope this helps please mark brainliest
The answer C looks the best to me. It states the fact that it allowed them to practically DOUBLE their land, and it lead to much westward expansion, which later lead to the gold rush, and other important things to America.
