D. You're trying to appeal to their emotions while proving it's happening, it's common, and it's a problem. I'd go with a first-person narrative over the poem, though. It's more heart-rending and makes it very real for the reader, not the mention it's a lot harder to misunderstand.
D) Both the poem and the essay would be appropriate to include.
When trying to persuade readers, it is best to use as many rhetorical devices as possible. The rhetorical devices are ethos, pathos, and logos. Ethos is an appeal to ethics. Pathos is an appeal to emotion. And, logos is an appeal to logic. Thus, by including a poem, most likely, pathos will be included because of how poetry is emotional. Additionally, by including facts that support your ethical position of ending child labor, readers’ logical next step would be to support ending it, as well. That said, both the poem and essay would be appropriate to include.
