"His story symbolizes both his ambiguous social status during the play, and the possibility of his social mobility"
Think about it. Gwendolyn doesn't love him because of this, he's quite open about this story, so that's not demonstrating anything. And this is not played up for sympathy. This leaves us with one option.
Answer:
Hamer worked to help the poor and families in need in her Mississippi community. She also set up organizations to increase business opportunities for minorities and to provide childcare
Explanation: