Which event occurred after the US Senate failed to pass the Treaty of Versailles? A) World War I continued for many years.

B) The Senate agreed with Wilson's stance on peace in Europe.

C) European leaders felt the US was sympathetic to Germany.

D) The League of Nations was significantly weakened.

D

Explanation:

Since the U.S. was the main factor of why he League of Nations was formed it was significantly weakened when it wasn't invited to join, also since the U.S. was a rising global powerhouse on the world stage and it not having a say also hindered the progress of the League of Nations.

did you check the study guide?