Final answer:
President Franklin Delano Roosevelt implemented the New Deal programs, increased government spending, and established the Social Security Act to address the Great Depression.
Step-by-step explanation:
President Franklin Delano Roosevelt (FDR) implemented a series of measures known as the New Deal to address the Great Depression. These measures included:
- Implementing relief programs to provide immediate assistance and financial aid to those in need.
- Increasing government spending on public works projects and infrastructure to create jobs and stimulate the economy.
- Establishing the Social Security Act to provide financial security to the elderly and disabled.
All of the above options (a, b, c) are correct. President Roosevelt believed that the national government should take an active role in restoring the economy and providing support to those affected by the Great Depression.