The choice that was not a factor is America gained European territory after the war and was able to export products to Europe and Africa without economic barriers. America in fact sent much aid to European nations under the Marshal Plan to help rebuild european countries.
The civil war is most probably one of the best researched conflicts in world history. However, there is still a lot of space for discussion and speculation.
The civil war starts at fort sumter.
The French and the British had a conflict over the Ohio river valley because of the control over fur trading. The Britishers tried to take the business away from the French by offering the locals more goods against fewer furs. The French had originally taken control over the Ohio river valley before the Britishers tried to get entry into the valley. The French did not take this heavy handedness of the Britishers lightly and so they started creating a line of forts. These forts were built to protect the fur traders from the invading Britishers. Many British settlers also started ariving in the Ohio river valley and this was not taken gladly by the French.
B, because college is so expensive no common man can afford it without assistance.