The poet describes the leaves as having a color like blood in the first stanza to add to the murderous answer forbidding tone of the poem. The poem is about a child drowning, and so the word blood foreshadows the dark events later in the poem
I feel like it can either be A. economic growth that is too rapid or C. increased demands on services and jobs. It depends on the scenario given. I'd choose A but I still feel like it genuinely can be either.