The best response that captures the concept of dramatic irony in the context of Act 3 is:
Readers are more likely to worry that Mia and Karou will not reunite, while the characters themselves are sure they will work things out.
This response effectively illustrates the difference in perspective between the readers and the characters. While readers may feel anxious about the characters’ ability to reconcile given their recent conflicts, the characters themselves still hold on to the hope that they will find a way to resolve their issues. This creates dramatic irony, as the audience is aware of the tension and potential for heartache, while the characters are more optimistic about their eventual reunion.