Final answer:
Before WWI, the United States had a global interest in expanding economic ties with Asia. Post-WWI events like establishing the League of Nations and developing the Marshall Plan were not reflective of pre-WWI interests. Instead, these helped propel the nation towards isolationism amidst concerns over the US being drawn into international conflicts and principles contrasting with democracy.
Step-by-step explanation:
The question asks which of the following was a global interest for the US before WWI, and among the options given, the correct one is B. Economic ties with Asia. Before World War I, the United States was already building economic relationships with Asia, which would grow significantly after the war. This focus on Asia was part of a broader international vision of the United States looking for new markets and areas to export its goods to ensure economic growth.
The establishment of the League of Nations and the development of the Marshall Plan are events that took place after WWI, and the expansion of suffrage rights became a more prominent issue during and after the war, because of the roles women played during wartime efforts, thus highlighting the hypocrisy of women's lack of voting rights. Hence, these options are not reflective of the US global interests before WWI.
While Economic ties with Asia reflects a pre-WWI interest, the League of Nations did play a part in the later shift toward isolationism by the U.S. after WWI. It stirred fears that involvement in international affairs would drag the U.S. into future conflicts and disagreements, going against a growing sentiment that empire building was contrary to democratic principles.