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.
Answer:
They all have the same number of lines. They all have the same rhyme scheme.
Explanation:
Hoped this helped.
He acts as if the world is ending.
