A. Social Darwinism
A quote I found sums this question up, but it'd be better to do some side research.
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"<span>the theory that individuals, groups, and peoples are subject to the same Darwinian laws of natural selection as plants and animals. Now largely discredited, social Darwinism was advocated by Herbert Spencer and others in the late 19th and early 20th centuries and was used to justify political conservatism, imperialism, and racism and to discourage intervention and reform."</span>
The picture is not clear :(
Three things that drove the United States into a policy imperialism is desire for military strength, thirst for new markets and cultural superiority.
<u>Explanation:</u>
American Imperialism started in 1890 and lasted till 1920. The industrialization peaked about twice the amount of British production which led Americans to seek new consumers to sell their products. When compared to military strength the British army was 5 times and the Navy was 10 times bigger than the Americans army and navy.
The countries around the United States never set forth any threat to it but it has a fear about the oversea countries. Also, the influence of Social Dwarfism separated people into groups following different cultures. These made America feel weakened and fueled it to follow the Imperialism to become a strong nation.
having specialization of labor,record keeping, and complex inst