B. Both poems compare man-made things to natural things. So that both of them deals with nature. They describe how the wildness and slovenliness could take over such vast area. Whatever you do in the nature, even if you want to change something, the things you do will return to the nature and stay in there, again. The objects which the authors write about in the poems show that the nature will dominate them with its power.
We need to know the question.
I think the answer is closing and draining the reservoir
