Question

which best explains why the united states was able to remain neutral at the outbreak of hostilities in 1914, while most of europe went to war? the united states avoided alliances that would have forced them to participate. the united states secretly sent troops and supplies to support countries on both sides. the united states did not allow any immigration from countries involved and had no close ties. the united states lacked any military resources that would have been valuable in the war.

Explanation:

Europe’s war in 1914 was driven by mutual defense alliances (e.g., Triple Entente, Triple Alliance) that forced countries into conflict. The U.S. followed a policy of avoiding such binding alliances, allowing neutrality. Other options are incorrect: the U.S. did not secretly send troops (supplies later, but not initially), it had immigration ties to European nations, and it had military resources (just no obligation to use them).

Answer:

The United States avoided alliances that would have forced them to participate.