Answer:
The mother is telling her son to persevere and keep going, like she did. "So, boy, don't you turn back." shows how she encourages him to move forward, and "For I'se still goin', honey, I'se still climbin" shows how she wants him to follow in her footsteps, because she is persevering.
Fun Fact:
My class also did this at online school last week.
I believe it would be the poet
The Correct Answer Is A: Don't Run Into Any Of The Following: A Tree, A Mailbox, Or A Lamp Post. Hope I Helped