Answer: Dramatic Irony
Explanation:
In the Story of an Hour, Louise Mallard hears news that her husband has died from her sister Josephine. She immediately retreats into her room and locks herself in and as time passes begins to look forward to her life without the shackles of her marriage binding her and was actually quite pleased with it.
When Josephine was worried and begging Louise to open this was Dramatic Irony because Dramatic irony refers to a situation where the audience or the people reading the story are aware that there is a divergence between the way a situation looks and the way it actually is yet some characters in the story might not know.
The audience knew that Louise was happy and that Josephine did not need to worry but Josephine did not know this and so was quite worried.
