Who was president during World War II?

Franklin D. Roosevelt was the president during the majority of World War II, which lasted from 1939 to 1945. He served as the 32nd president of the United States from 1933 until his death in 1945. Roosevelt played a crucial role in leading the nation through the Great Depression and into World War II, providing strong leadership and implementing critical policies that shaped the nation's involvement in the war. His administration was marked by significant decisions, such as the decision to support Allied powers and mobilizing American resources for the war effort.

The other individuals in the choices served at different times or in different capacities. For example, Warren G. Harding was president in the 1920s, specifically from 1921 to 1923, before World War II began. Harry S. Truman, who succeeded Roosevelt after his death in 1945, did oversee the final stages of the war and the beginning of post-war rebuilding. Dwight D. Eisenhower, although a prominent military leader during the war and later president from 1953 to 1961, was not in the presidency during the actual conflict. Thus, Franklin D. Roosevelt is the correct answer, as he was in office throughout the majority of World War