I think B would fit. Im not 100 percent sure, but B shows that the wall is not needed and it clearly states that in the poem hope this helped!
Answer:
The Secret of the Blue Room
Explanation:
Maybe it could be a murder story and it happened a long time ago in this "blue room". Throughout time after that people who have stayed in that room (it can be a hotel) have gone missing. Then, the main character finds themselves trying to solve the mystery and yeaaaaaa.
Answer: talking
Explanation:
because that means talking
