Final answer:
The exact organization that began and ended during WWII, serving veterans and polio victims, is not specified. The American Legion was active in veteran advocacy, and the G.I. Bill provided extensive benefits to World War II veterans. No clear reference is made to an organization serving polio victims during the same time.
Step-by-step explanation:
The organization that began and ended during WWII, attempting to serve veterans and polio victims, is not clearly stated in the provided references. However, the American Legion and the G.I. Bill are closely related to the context of providing services for veterans. The American Legion, formed in 1919 by World War I veterans, played a significant role in advocating for veterans' rights and was instrumental in the creation of the G.I. Bill. The G.I. Bill, officially known as the Servicemen's Readjustment Act of 1944, was a landmark piece of legislation that provided various benefits to World War II veterans. It was designed to ease the transition to civilian life by offering educational benefits, low-interest home loans, and unemployment compensation. This legislation was essential in shaping postwar America and its treatment of veterans. Regarding polio victims, there is no direct reference to an organization that both started and ended during WWII specifically serving polio patients in the context of the material provided.