I believe the answer is:B. The poem uses imagery and a narrative structure to express the speaker's emotions.
Here is the full poem:
<em>The golden gates of Sleep unbar</em>
<em>Where Strength and Beauty, met together,</em>
<em>Kindle their image like a star</em>
<em>In a sea of glassy weather!</em>
<em>Night, with all thy stars look down,—</em>
<em>Darkness, weep thy holiest dew,—</em>
<em>Never smiled the inconstant moon</em>
<em>On a pair so true.</em>
Imagery refers to the add of vivid and descriptive language to describe a certain event or objects.
This can be seen from this line:
<em>Where Strength and Beauty, met together,</em>
<em>Kindle their image like star</em>
The word 'star' is used to vividly describe beauty and strength because star is known to shine brightly and have a high aesthetical value for most people.