The obvious answer would be C. rhyme.
As you can see, each of these lines rhyme: sea rhymes with C, and me, and be. Those words sound similar, which means they rhyme. There are no metaphors (comparisons) and onomatopoeias (mimicking the sounds from nature) here, or alliterations (repetition of the same consonant) in this excerpt.
I believe that the thrush's song changed the mood because it was a song filled with hope from the divine that inspired him. Darkling Thrush refers to a bird who is weak and fragile, however, even with these qualities, he sacrificed himself.
D. Old Granny
She arranged the marriage for Ira and everyone considered it good.
I think the answer is 1.slang
