Answer:
it is to inform readers of how hard the life of a slave was and give readers a glimpse into the life of a slave and he they weren't cared about
The answer is eather training or proceders manual
I would have to say it's part of the theme.
Morality and politics is the ethos of the story, aka origin aka theme.
With-out a theme there would be no plot...and no setting.
So...
C. Theme
