Which two statements correctly describe the effect of repetition in the last stanza of robert frost's "stopping by woods on a snowy evening"?

the woods are lovely, dark and deep,
but i have promises to keep,
and miles to go before i sleep,
and miles to go before i sleep.

the repetition shows the distance that the speaker has to travel before he finishes his job.
the repetition emphasizes that the speaker has accepted his responsibilities in life.
the repetition is a decorative feature and does not add to the meaning of the poem.
the repetition indicates that the speaker has found resolution to the conflict inside him.
the repetition is designed to alter the rhythm of the poem at its conclusion.