C: to process uranium and use it to build and perfect atomic weapons
<span>There was a general feeling that this was a European conflict in which the US had no place involving itself. Plus, the US being made up of so many immigrants from countries that were both the Allied and Central Powers it was difficult to actually take a side. Hope this helps
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"The Roosevelt Corollary" is the best option from the list in terms of what would prevent Japanese intervention in its neighboring island of the Philippines.
