I would guess B, but i'm not 100% sure
Probably the first line, "Thy hair soft-lifted by the winnowing wind..."
When I think of a "young maiden", I think of a girl with long, pretty hair. Keats describes just that in the first line. The other lines can be interpreted as anything, but aren't exactly like a young maiden.
It clarifies that the plague was the biggest killer in Elizabethan England.
Explanation:
I got it right on Edgu 2020
The right answer is: "The nurse does not know that Nora will leave her children, but the audience does."
When Torvald humiliates Nora, he tries to apologize with her, but she has changed, she realized her husband is a very strange man for her and in her marriage was always a doll, so she decided the only way to recognize herself is leaving from the house.
I think the answer is A and C