The correct answer to this open question is the following.
The question has no options or any particular references. So we are going to answer it in general terms.
The two conclusions we can draw about American imperialism is the belief that Americans have had that the United States is a special country that has the right to intervene in other nations to keep liberty and democracy alive, as we can see with the case of the Manifested Destiny or the Monroe Doctrine. The other conclusion can be that this way of thinking has caused too much hate, anger, and resentment on the part of the countries that have been invaded by the US through history. That is the case of the Philippines, Latin American countries in general, and nations in the Middle East.