Who was President during the Great Depression and World War II?

The correct answer is Franklin D. Roosevelt, who served as President of the United States from 1933 to 1945. His presidency is notably marked by two significant events: the Great Depression and World War II.

During the Great Depression, Roosevelt implemented a series of programs and reforms known as the New Deal aimed at providing relief to the unemployed, promoting economic recovery, and reforming the financial system to prevent a future depression. His leadership during this challenging economic crisis was pivotal in restoring public confidence and laying the groundwork for recovery.

As World War II began, Roosevelt's policies and leadership were crucial in mobilizing the American economy for war production. He played a significant role in establishing alliances with other countries and was instrumental in the strategic decisions made during the war. Roosevelt’s ability to inspire and unite the nation during these times of crisis helped to shape the course of American history.

The other historical figures listed served in different contexts: Theodore Roosevelt preceded this era, Dwight D. Eisenhower took office after World War II, and Harry S. Truman succeeded Roosevelt after his death in 1945. Therefore, Franklin D. Roosevelt is the only president who presided over both the Great Depression and World War II.