D.) Almost doubled the area of the U.S. and gave it control of the Mississippi River.
It was a safety net against poverty for people over the age of 65, as well as being a welfare system for disabled people.
Assuming you mean the Great Plains of the USA- it boosted their sales because of the government buying more wheat to ship overseas to assist in refugee and military supplies, assuming the farmer(s) were not drafted into military service themselves.
They became wealthier by finding gold and sending it back to Europe
<span>It is thought to have been the reason why Polk won the election over Clay. Polk was a slave owner and was in favor of annexing Texas which was a slave state already, thus growing the slavery movement. Clay was initially against annexing Texas when Van Buren was initially running against him. When Polk ended up winning the nomination for the Democratic party over Van Buren, Clay then changed his mind on the topic of the annexation to support it, as Polk had. This made him appear wishy-washy and led to be Polk becoming President.</span>
