I’m pretty sure the answer is tone.
I believe its:
B- TO PROVIDE DETAILS TO SUPPORT THE ESSAY'S MAIN IDEA
The poem “Burning of a Book” is in a free verse. Meaning, it has no set meter, no rhyme scheme, or any particular structure. The structure supported the development of the poem in a way it lets the poet write freely. The poet was able to give us a graphic description of what he wants the readers to see.
The old one, the new Romeo & Juliet used in their play guns and stuff like that. They've also cut a lot of important information!
The answer you are looking for is:
Simile, metaphor, hyperbole, and also personification but thats not up there.
Hope that helps!!
Have a wonderful day!!