from "ode to a nightingale" by john keats

thou wast not born for death, immortal bird!
no hungry generations tread thee down;
the voice i hear this passing night was heard
in ancient days by emperor and clown:
perhaps the self-same song that found a path
through the sad heart of ruth, when, sick for home,
she stood in tears amid the alien corn;
the same that oft-times hath
charm'd magic casements, opening on the foam
of perilous seas, in faery lands forlorn.

in this portion of the poem, how does keats imagine the song of the nightingale impacting ruth, the woman whose story is documented in the old testament of the bible?
a) he imagines the bird's song outliving her.
eliminate
b) he imagines the bird's song making her happy.
c) he imagines the bird's song giving her trouble.
d) he imagines the bird's song resonating with her emotions.