Why do authors use irony in fiction and literary nonfiction texts?

A.
to represent an abstract idea with a concrete object
B.
to create a clear image in the reader’s mind
C.
to call attention to certain words by creating rhythm with those words
D.
to create a contrast between how things seem and how they really are

Anne frank was a very difficult person because she would never listen to her moms sometimes her dad even though he was her favorite and in times like that it would make it harder for there parents and other people in the annex to deal with her and since they were just stuck in there the couldn’t do anything but grounding her but even that didn’t work. hope that :