D.the poem uses imagery to show the speakers love
I would say that it depends on the audience. Personally, a debate regarding ethics and moral dilemma is interesting. Read The Fat Man and the Impending Doom. It's just one paragraph so it's not going to bore audience.
https://thedailydilemma.wordpress.com/2007/06/18/fat-man/
I believe that this type is a lecture-forum discussion.
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.
C.
<span>Oral history
</span>was used before the development of writing