Answer:
A The Americans built the Suez Canal.
It helped because it enabled other fronts to open up because the American Offensive in the area ended with a victory, which meant that they could move to other areas and bother Germans there. They didn't' do this however because the fighting ended since the Germans became aware of their losses and signed an armistice.
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North: Had a larger population, had a great industrial advantage, the north controlled the seas, the North had more troops to fight the war. the North had railroads, steamboats, roads, and canals for faster transport of supplies and troops.
South: The south was playing defense on their own territory, the South had better Generals who knew better how to fight, and the South could produce all the food it needed.
I believe, due to my research, that the answer is A. In the Mayflower Compact, they had their first democratic government and in order to make that successful, you would want to make rules that are fair to the people and yourself! Hope this helps! =)
Mozart I think hope this helps