The most accurate response is: A. The United States did not want to get involved in European conflicts.
After World War I, there was significant isolationist sentiment in the U.S. Many Americans were reluctant to commit to international agreements that could entangle the nation in foreign conflicts. Although President Wilson advocated for the League of Nations as part of his 14 Points for peace, his vision faced opposition in the Senate, primarily from those who feared that membership would compromise U.S. sovereignty and commit the nation to international military obligations. Ultimately, the Senate did not ratify the Treaty of Versailles, and the U.S. did not join the League.