Of the following new deal policy’s

, the most significant and impactful were the Social Security Act and the Works Progress Administration (WPA). These policies had lasting effects on American society and helped to provide economic security for millions of Americans.

The Social Security Act, enacted in 1935, established a system of social insurance that provided benefits for retired workers and those with disabilities. It also established unemployment insurance and provided funds for state welfare programs. This policy helped to alleviate poverty and promote economic stability by providing support for individuals and families during times of need. Today, Social Security continues to be a crucial safety net for elderly and disabled citizens.

The Works Progress Administration, created in 1935, was a federal agency that employed millions of Americans to carry out public works projects. These included construction of roads, bridges, public buildings, and parks. The WPA not only provided much-needed employment during the Great Depression but also improved infrastructure across the country. Many iconic structures, such as the Hoover Dam and the Golden Gate Bridge, were constructed under the WPA. This policy not only created jobs but also had a positive impact on the nation's infrastructure and economy.

Other notable New Deal policies included the Civilian Conservation Corps, which employed young men in environmental conservation projects, and the Tennessee Valley Authority, which aimed to provide electricity to rural communities and promote economic development in the impoverished Tennessee Valley region.

Overall, the Social Security Act and the Works Progress Administration were the most transformative and significant New Deal policies. They provided vital support to struggling Americans and left a lasting impact on the country's social safety net and infrastructure.