Read the passage from "The Walrus and the Carpenter."

The sun was shining on the sea,
Shining with all his might:
He did his very best to make
The billows smooth and bright —
And this was odd, because it was
The middle of the night.

Which of the elements of poetry best contribute to the sound of the poem?

The sound makes the poem sillier.

The sound contributes to the poem's theme.

The sound makes the poem more formal.

The sound creates personification.