It was also known as the English civil war
Answer: Americans and immigrants who wished to start new lives on farms and other rural projects who moved to the west, since during this period of migration there were very few established towns in which to work.
Explanation:
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.