It defines culture and surroundings and environment
The answer is 'by not fulfilling expectations'. The other options don't really surprise the reader, and if the plot is going into one direction, and then what you'd expect to happen doesn't actually happen, you are surprised, and the element of irony is achieved.
I believe it's tone how they are speaking throughout the story
You are correct! The point of view is third person! Hope this helps and good luck!
