In 1920 the US Senate rejected the Treaty of Versailles, the peace treaty that ended World War I and created the League of Nations, due to fears that the League would

A)
draw the nation into unnecessary conflicts.
B)
help spread communist ideology worldwide.
take away Congress's power to declare war.
D
reduce the global influence of the United States.

A. Draw the nation into unnecessary conflicts.

Explanation:

The League of Nations was originally part of the Fourteen Points, which was created by President Woodrow Wilson. The Fourteen Points were goals for during and after World War I and were a general outline of peace.

After World War I, the League of Nations did get created, as it became part of the Treaty of Versailles. The goal of the League was to prevent future wars from happening and to promote peace. While President Woodrow Wilson was the one who essentially thought of the League of Nations, the United States Senate was not a fan of it and ultimately rejected the United States joining the League.

There were isolationists in the United States Senate, meaning people who did not want to be involved in foreign affairs. After World War I, many people did not want to be included with the problems of other countries, including a lot of people in the United States. The Senate feared that if the United States were to join the League of Nations, they would then get caught up in unnecessary conflicts with other countries and hurt the country as a whole.