The treaty that ended world war i but was rejected by the us senate was called the treaty of .

The treaty that ended World War I but was rejected by the US Senate was called the Treaty of Versailles.

Explanation:

The Treaty of Versailles was a peace treaty that was signed in that city at the end of World War I by more than fifty countries. This treaty officially ended with the state of war between Germany and the Allies of World War I. It was signed on June 28, 1919, exactly five years after the Sarajevo bombing in which Archduke Franz Ferdinand was killed, the direct cause of the war. Although the armistice was signed months before (November 11, 1918) to end hostilities on the battlefield, it took six months of negotiations at the Paris Peace Conference to conclude the peace treaty. The Treaty of Versailles came into force on January 10, 1920.

regulate taxes

explanation:

c is the correct answer for this question.