How did the Second Great Migration lead to social developments that improved the racial identity in the 1950s?

African Americans could petition the national government for changes to southern Jim Crow laws by moving to urban northern industrial centers.
The majority of urban African Americans were able to climb up the ladder of success and change past discriminations.
The Second Migration saw the movement of successful northern African American businessmen back to the south to facilitate political change.
African Americans could find northern voting blocks that would allow them to elect their own representatives to the United State Congress.

A?

5 answers

I disagree. Jim Crow laws were local or state laws, not national laws.
Ok well I don't think its c, I don't remember reading about them returning to the south and I doubt they would do so,,, I don't think that "most" of them got to climb up the ladder so I don't think it is B. so A?
B is the best response. I lived in Chicago during the 1950s and there were a lot of middle class African Americans there.
oh okay thank you
You are welcome.