I believe the best answer is D. The discrepancy between what is expected and what really happens as with dramatic irony, this could be quoted as a definition. Dramatic irony is when a reader expects one thing to happen, but something else happens, or when the reader knows something will happen but the character does not.
It has the earmarks of a good convo because the sentences arent dragged along. its simple but gets the thought through. also its back and forth and not just one person doing most of the talking
INCLUDE THE SCENE WE CANT ANSWER WITHOUT THE SCENE
answer is D. Which is angry and lonely