Answer: D) "sunny" and "spots."
Explanation: alliteration is a literary device that consists in the repetition of the beginning sounds of consecutive words or words that are close to each other in a text. In the given passage from "Kubla Kahn" by Samuel Taylor Coleridge, we can see an example of alliteration in the words "sunny" and "spots" because they both start with a "s" sound. So the correct answer is the corresponding to option D.