How does the oxymoron in line 33 contribute to the play?

"33 HEIDI: [Sitting up suddenly.] Wait, even better: "Seriously
funny since 2018," just like Will's idea, and maybe over the
double "n" we balance a pair of those glasses that has a fake
nose and moustache. You know, really corny but classic."
Select TWO correct answers.
It emphasizes the complexity of comedy.
It highlights Heidi's respect for Will.
It reveals the importance of comic timing.
It demonstrates Heidi's skill with words.
It illustrates Heidi's rising self-confidence.

The correct answers are:

- It emphasizes the complexity of comedy.
- It demonstrates Heidi's skill with words.