Answer:
A The plot turns out differently than expected.
Step-by-step explanation:
Irony occurs because of the discrepancy of the unseen happenings, and the reality of what happens. The central irony, therefore, occurs when she is happy because of the death of her husband, ideally no one celebrates the end of another person even though you were great enemies. First, she burst into tears but suddenly burst into joy.
It is, therefore, ironical when she goes to her room while shouting that she was free. She is happy because her husband is dead.