I think it is the story of The Labyrinth
It's definitely D.
It's for sure not C. And I've never read the full story, but this passage doesn't indicate a depressing mood of foreshadowing danger. And the vocabulary in the writing doesn't impact the story itself.
Answer:
Term: Contrast
Explanation:
To compare something is to estimate, measure, or note the similarity or dissimilarity between something.
Contrasting, however, is noticing the striking differences, emphasizing differences rather than just pointing them out.