It is federal republic, because oligarchy and unitary republic are totally wrong. And the confederal republic was basically the old USA..
<span>The three reasons why Reconstruction failed to live up to its potential are:
1. There was a lack of unity in national government.
This is because, Reconstruction happened after Americans' Civil War and some of the people in the government didn't like the idea of establishing this which caused the failures of bring the South America into the country, revive the economy and rebuild the broken landscape.
2. Not enough of the freedmen wanted to become free. Although Reconstruction wanted to infuse the freed slaves into the society, it did not successfully established. This was due to the rise of American organizations that made them feel insecure.
3. America could not overcome the issue of racism.
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Multiple choice or written essay?
Almost all humans to a certain extent are dissatisfied with the limited availability of resources, but if you're speaking from an academic point of view, it would be Economists, since they study choices made from this limited availability.
They had naval superiority. This meant they could form naval blockades to keep the central powers from getting supplies in and out. A disadvantage would be that France, Russia, and Britain were separated. Because of this, they could not supply each other.