Depends on what kind of essay, comment me back and tell what kind.
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
Answer:
food, food and I think food
Life is like a fine line
There would be good and bad times
But you never get to choose what you want
But one day everyone will have a thought
And in that thought will be regret
Because you never choose what you want or get
Anaphora because it is the repetition of a word in the start of sentences