Drafting an outline of the essay
i say B.
Decorous
in keeping with good taste and propriety; polite and restrained.
Dramatic Irony is when the audience knows something's going to happen, but the characters in the story don't.
The only possible answer could be Option A. The audience knows that these two characters are good friends, but the characters in the story think that they're strangers.
Good luck! If you have any more questions, just ask :))
-T.B.
Answer: D) In a text to a friend
You don't need to worry about spelling or grammar in this context, as long as your message gets across of course.