Correct Option: B

US President Franklin Delano Roosevelt first suggested using the name United Nations to refer to the Allies of World War II. Roosevelt suggested the term to Winston Churchill who cited Byron’s use of the phrase “united nations” in Childe Harold’s Pilgrimage, which referred to the Allies at the Battle of Waterloo in 1815. Franklin Roosevelt adopted the name and the first official use of the term occurred on January 1, 1942 with the Declaration by the United Nations.