Which of these BEST describes the impact of the 1948 desegregation of the armed forces in advancing the cause of civil rights?

The 1948 desegregation of the armed forces, initiated by President Harry S. Truman’s Executive Order 9981, was a significant milestone in the Civil Rights Movement as it set a precedent for the integration of public institutions and demonstrated the federal government's commitment to ending racial discrimination. This action provided African Americans with opportunities for leadership and advancement within the military, fostering a sense of equality and unity. Additionally, the integration of the armed forces influenced public opinion and galvanized civil rights advocates, helping to pave the way for subsequent legislative and social changes aimed at achieving racial equality in broader society.