Umm purpose I’m guessing , if It’s wrong then I’m so sorry
Macduff's son is a character that even though, his age is not stated in the play, is assumed to be young. The killing of this young character and especially the way that happened shows Macbeth's kingdom cruelty. The murderers call this boy "Egg" while he tried to defend himself and defend his mother who was later killed too.
I had the same problem with this question and I know I'm late, but I am answering it for future students who may have trouble with this question. I believe the narrator is saying that if Helen Grey does not change her ways she will be unhappy. Men think she is beautiful, but because her personality is ugly they will find her unattractive. She will be bitter. In the poem it states, "Take heed, you yet may trip and fall, and no man care to stretch his arms."
Answer:
C - A poignant description of the strengths and faults of America.
Explanation:
The author uses the words and phrases 'her vigor', 'might and granite wonders', 'pricess treasures' to describe the strengths of America and 'bread of bitterness', 'cultured hell', 'darkly I gaze a head' to describe the faults.