The correct answer is an Oligarchy. Hope this helps :)
A. Because the US for example is big and powerful because it has always been able to trade with different countries
You need to use your textbook
Native Americans (Indians)
The correct answer is D. Powers not expressly given to the federal government belonged to the states.
The Democratic-Republican party was based on the ideas of several different individuals including Thomas Jefferson and James Madison. These men were in favor of a small central (aka federal) government. This shows that answer choices one and two are incorrect.
Along with this, the Democratic-Republicans believed that the state governments should have a significant amount of power. This is why these individuals believed that any power not given to the federal government should belong to the states.