what is the central idea of the poem? How is the subject matter related to the central idea that photographs had?

Pls excerpted from "hope is the thing with feathers" by emily dickinson [2] and sweetest—in the gale—is heard— and sore must be the storm— that could abash the little bird that kept so many warm— [3] i've heard it in the chillest land— and on the strangest sea— yet, never, in extremity, it asked a crumb—of me. in the last stanza, the author writes that the little bird “never … asked a crumb of me.” which type of figurative language is evident in these lines? a. onomatopoeia b. alliteration c. assonance d. personification