Who was the president during the Great Depression?

The correct answer is Herbert Hoover, who served as president at the onset of the Great Depression. The Great Depression began with the stock market crash in October 1929, during Hoover's administration. His policies and responses to the economic downturn set the stage for the challenges that followed.

Franklin D. Roosevelt, while an important figure in addressing the Great Depression through his New Deal programs, took office in March 1933, after Hoover. Thus, Roosevelt is often associated with the recovery efforts rather than the beginning of the crisis itself.

Calvin Coolidge's presidency preceded Hoover's and ended in 1929, so he was not in office during the Great Depression. Harry S. Truman, who succeeded Roosevelt in 1945, dealt with post-war economic challenges but was also not president during the Great Depression.