D is the answer. Free verse poems don't use very much to little rhyme.
I'm leaning more towards B, to help the reader visualize Mrs. Sommers setting herself apart from the more crowded bargain area of the store, but just to be sure, check your text to get context clues and a definitive answer.
Answer:
Weight of silver coin = 29.25 units , weight of gold coin = 35.75 units
Explanation:
Let the weight of 1 gold coin be 
Weight of 1 silver coin be 
Total no of gold coins = 9
Total no of silver coins = 11
Total weight of gold coins = 9
Total weight of silver coins = 11
It is given that both weigh same thus we have

After replacing coins the weights become as under

Now it is given that gold stack weighs 13 unit less thus adding 13 units to gold stack gives it's weight equal to silver stack
the above relation modifies as


The correct answer would seem to me that the artwork suggests a woman in her home, while the poem's figurative language connects her to nature.
The artwork is giving us an image of a Japanese woman, quite possibly a geisha due to the other imagery stated in the poem. She is sat in front of her mirror in the morning beginning her daily ritual of applying her makeup.
The poems figurative language makes use of giving us comparisons of the woman to aspects of nature, such as hair the color of seaweed spread over rocks, fingerprints of pollen, curve of a shoulder like the slope of a hill set deep in snow in a country of huge white solemn birds, her face appears in the mirror a reflection in a winter pond.