The poem is:
Slowly, silently, now the moon
Walks the night in her silver shoon;
This way, and that, she peers, and sees
Silver fruit upon silver trees;
One by one the casements catch
Her beams beneath the silvery thatch;
Couched in his kennel, like a log,
With paws of silver sleeps the dog;
From their shadowy cote the white breasts peep
Of doves in a silver-feathered sleep;
A harvest mouse goes scampering by,
With silver claws and a silver eye;
And moveless fish in the water gleam,
By silver reeds in a silver stream.
Answer: C) imagery.
Step-by-step explanation: Imagery is a literary device that consists in the use of figurative language or detailed descriptions in order to evoke the senses of the reader and to create a mental picture. As we can see, in the poem "Silver" by Walter De La Mare, he uses a lot of imagery in phrases like " Walks the night in her silver shoon, " "Couched in his kennel, like a log, With paws of silver sleeps the dog"