B. The punctuation belongs outside of the parenthetical citation.
The symbolic meaning of gold in the poem is best described by option C. The wonderful things in life that do not last.
In the poem, gold is used to describe the transition of nature from one state to another. Everything that is colored gold does not last long, that is why it is said that nothing gold can stay. Here, we get the idea that we should get the most of these valuable "things" before they are no longer there.
I don't know a lot about papers but for examples, the sentence that says "Then after Lily died, he stepped over James dead body and left her traumatized son in his crib and just clutched Lily’s dead body."
The word JAMES should have an apostrophe.
James's
"Severus Snape is not a good person and Harry really needs to rename his child. "
Instead of saying good try something like "pleasurable" or "delightful"