Answer:
I think it might be the first one
The answer is B, Mystical Blue
It is stated in the beginning of the poem
"set in the window, bringing memories, of fruit tree laden by low singing rills, and dewy dawns, and mystical blue skies"
Free slaves economically--sharecropping forced former slaves back to the land they had worked and kept them indebted to the landholder.
The system of sharecropping meant for a piece of land to farm, a person would owe a portion of their crop to the landholder. This program kept blacks enslaved to the land not allowing them true freedom to leave and become ecnomically independent.
