My personal opinion to what the answers are:
Readers are uneasy with the narrator's growing instability,
Readers question the narrator's ability to act rationally,
Readers understand that the account given by the narrator is true.
I hope this helped, again, this is only my opinion to what I believe the answers are.
I believe the answer is 2. Literary nonfiction is about true events using narrative techniques.
The last one DBEAFC hope it help