a) The Russian Revolution
b) The Treaty of Versailles
c) The formation of the League of Nations
d) The United States becoming a global superpower
The correct answer is d) The United States becoming a global superpower.
While World War I had a profound impact on the world, the United States did not emerge as a global superpower as a direct result of the war. The United States had already been growing in economic and military strength before the war, and its role in the war further cemented its status as a major world power. However, it was not until after World War II that the United States truly became a global superpower, with its economic dominance, military might, and cultural influence shaping the post-war world.