The correct answer is: American principles traditionally opposed colonization.
American Imperialism is defined as the cultural, economic and military influence of the United States internationally. This term was developed in the late nineteenth century, a time better known as the Age of Imperialism because The United States quickly expanded their territorial possessions.
The American imperialism is based on the American exceptionalism, which is the idea that The United States is different to other countries due to its belief in liberty and democracy.
An argument that supports American Imperialism is that businessmen were urging the U.S. to compete with other nations for natural resources.