Which statement best describes how the structure of lines $1-6$ contributes to the central meaning of the poem?

The lines end with pairs of rhyming words, mimicking the recurring shift from night to dawn.

The lines focus on night first and dawn second, devoting three lines to night and three to dawn.

The lines set up a contrast between night and dawn, developing distinct experiences of each.

The lines consist of one longer and one shorter sentence, suggesting night is long and dawn is short.