Answer: D) Personification.
Explanation: Personification is a figure of speech that consists in giving human characteristics to nonhuman objects. In the given excerpt from the poem "The First Snowfall" by James Russell Lowell we can see an example of the use of personification, in the phrase "every pine and fir and hemlock wore ermine.." it is giving the pine, fir and hemlock (nonhuman objects) a human characteristic (they are wearing ermine).
The theme for this story could be that if you work hard enough, you can leave your troubles and problems behind. The theme could also be that if you try too hard to avoid danger , than you might put yourself in more of it.
He compares the poem to the moon, mainly because of the moon's slow, and gracious movement on the sky. According to the poet, "<span>Leaving, as the moon behind the winter leaves" is the description of how the poem should slowly and carefully flow to the end, just like the moon during a winter night. Poem should be motionless - should capture reader's attention, and entangle him in it completely. </span>