Final answer:
The supporting details that indicate Hoover's policy of volunteerism failed include the specific and limited nature of the programs, the small percentage of those in need that were helped, the public's growing dissatisfaction with Hoover, and his low approval ratings when he left office.
Step-by-step explanation:
The supporting details that support the conclusion that Hoover's policy of volunteerism failed include:
- The programs created by Hoover were small in scale and highly specific as to who could benefit.
- The programs only touched a small percentage of those in need.
- The public grew increasingly unhappy with Hoover as the situation worsened.
- Hoover left office with one of the lowest approval ratings of any president in history.
These details demonstrate that Hoover's policy of volunteerism failed to adequately address the needs of the American people during the Great Depression.