Please help QUICKLY!

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?
A.
The sound contributes to the poem's theme.

B. The sound makes the poem more formal.

C. The sound creates personification.

D. The sound makes the poem sillier.