I think its d but iam not sure
I believe the answer is a strong support for public education. A supportive education can help the youth be self-reliant. The US focuses on giving the best education to the students. Free education during in basic, junior and senior high school would provide job security because they would be skilled enough. Having a college degree could be a challenge since they can work and study at the same time.
By 1963 the right of free voting hadn't been achieved by the civil rights movement. The decade of the fifty's was a continuous fight against the segregation in school and public areas, Martin Luther King Jr. began with pacific protest over discrimination, reaching the maximum national attention in 1963 in the Washington march. Was until 1965 that the voting right act was signed.
( Btw. Have anymore questions. I can help you :D )