You didn’t show the poem but by the name it seems like Answer choice #1 (may be about self reflection)
I think that the answer is C.
I might be wrong.
Answer:
It was built to protect their territory
Explanation:
It means that there was a deal between two persons who negotiated on something and they were very close to have a mutual consent say, on the price, but they eventually did not. So the deal was off.