What is the context of this question. You did not provide any article to help answer your question.
I can't help that person lol
Btw hi gumball lma0
The correct answer should be person vs. self
It is a story about a boy becoming mature and perfectly showing how he has internal struggles as he goes through the tunnels and fights them. Eventually we understand that what seems like simple going through a tunnel depicts his struggles and growth.
It falls in the fictional short story genre