Answer:
The Answer is option B:The word “heart” is a stressed syllable in each poem and part of a key image related to the theme.
Step-by-step explanation:
If the reader reads the First line segment of Auspex up to the semi-colon out loud it will clearly be stressed along with the word "it".
Similar to the whole excerpt for A Psalm of Life it could be inferred that the description of that segment is describing the the heart itself
My heart, I cannot still it,
Nest that had song-birds in it;
And when the last shall go,
The dreary days, to fill it,
Instead of lark or linnet,
Shall whirl dead leaves and snow.
— “Auspex”
Art is long, and Time is fleeting,
And our hearts, though stout and brave,
Still, like muffled drums, are beating
Funeral marches to the grave.
— “A Psalm of Life“