Answer:
B. The poem uses imagery and a narrative structure to express the speaker's emotions.
Step-by-step explanation:
Imagery is a visually descriptive language.
“The golden gates of Sleep” ⇒ imagery
“a sea of glassy weather” ⇒ imagery
The poem has a narrative structure, the narrative structure has a setting, a plot, and a theme. The narrative structure of the poem allows the action to develop in a chronological way that the reader can follow.