During the 1930s, the United States faced one of its most significant economic challenges: the Great Depression. In response, President Franklin D. Roosevelt implemented a series of programs known as the New Deal, designed to provide relief for the unemployed, recovery of the economy, and reforms to prevent future depressions. One of the landmark pieces of legislation under the New Deal aimed specifically at providing financial support for the elderly and reducing poverty among older Americans. Which of the following New Deal programs was primarily focused on addressing these issues?