Some of the arguments used to support US expansion and manifest destiny were: European examples, new markets and access to vast natural resources. Because of the US massive industrial expansion and production, US industries needed new markets to sell their goods to and they need access to more natural resources to ensure the continued production. The US expanded its inluences into Alaska, the Pacific (Hawaii, Samoa, Guam, and the Philippines), Latin America and Asia (China and Japan)
Identity, assimilation, tribal sovereignty, revitalizing native culture. There are more but I hope these help
This correct answer is "popular sovereignty."
This idea of letting territories vote on whether or not they wanted slavery was supposed to be helpful in solving the issue of slavery in the United States. However, this led to terrible violence and bloodshed, especially in Kansas. After Kansas voted to become a slave state, many anti-slavery individuals claimed the election was rigged due voters coming from Missouri to vote in the Kansas election. This resulted in fighting between the two. This period is now known as "Bleeding Kansas." This idea was one of many solutions that failed to solve the issue of slavery in America.
The correct option is C. They had trained and rehearsed for the mission. Originally, the black regiment had prepared for the offensive and was going to lead the charge against the Confederate Army, however one day before the battle they were ordered not to do that and were replaced by white troops. This result in a defeat of the Union Army.