What tells you that the word "heart" is important in both poems? Analyze word choice, imagery, and
structure.
* The word "heart" is important to each poem's
rhyme scheme and relates to a theme.
O The word "heart" is a stressed syllable in
each poem and part of a key image related to
the theme.
The word "heart" creates an end rhyme in
each poem, and the heart image is concrete
and personal.
The word "heart" appears in enjambed lines
in each poem, emphasizing its importance.

the word “heart is a stressed syllable in each poem and part of a key image related to the theme

Explanation:

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.

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“