Read the third stanza of "because i could not stop for death."

we passed the school, where children strove
at recess – in the ring –
we passed the fields of gazing grain –
we passed the setting sun –

why does dickinson most likely repeat the word “passed” three times in this stanza?
the words convey a sense of steady motion.
the words indicate the speaker’s loneliness.
the words indicate that the carriage is moving quickly.
the words show that the speaker is undergoing inner growth.