A session is a period of time each year when members of congress “meet to discuss laws” so option 3) is the correct one.
The United States congress has two sessions within a two-year term, one per year. During these sessions, the congress meets to debate on passing new laws and acts. Any member of the congress can introduce a bill to be discussed later in the sessions.
Woodrow Wilson was one of the main influences in the ending of World War I. He worked very close with the leaders of France and Great Britain in order to develop the Treaty of Versailles. In this treaty, the League of Nations was created. This idea, developed by Wilson, was supposed to be a collection of countries who worked together to keep international peace.
Even though Wilson supported it, the US Congress did not. This effort to not join the League of Nations was headed by Henry Cabot Lodge. Lodge felt that the US should avoid constant foreign entanglement. Along with this, Lodge worried that joining this organization would cause the US to be dragged into more wars in the future.
They were very displeased and were mistreated