Answer:
The Answer is A
Explanation:
I just did the assignment and I got that question right.
Instead of using "set off" used skyrocketed, or rocketed or left an impact or created a ripple effect, something around those lines.
Also, if you want to say the question from the novel use a single quotation, ', instead of a double. It makes more sense that way.
We did this poem in our class too, the strongest form would be allusion because the crystal stair, and all the stuff on the stairs represents her life and the hardships in it.