Tell me about your cafeteria
The purposes of comic relief would be A. And D. Adding comic relief to a story can ease the tension of the story, and there should be a balance between seriousness and comedy.
The other options may work for CERTAIN stories, but not the general idea of the concept.
I hope this helps you!
10. Is Emitting 9 is Disposable 3. Is Immune 12 is nostalgic
This is assonance- when words sound similar or have syllables