Answer:
Hope
Explanation:
The symbolism of the blue sky which occur both in her reminiscence as a young girl, and now, as she looks out the window symbolize hope.
The blue sky appear just after Mrs. Mallard was told about the death of her husband, This simply symbolize hope in her new situation.
Mrs. Mallard who had longed for her life to end, thinking there wouldn't be any improvement but limitations. Now that end seems full of hope.
Mrs. Mallard has lived for several years under the same gloom of monotony, hoping that life will improve for better. The clouds begin to break just as Mrs. Mallard's situation changes, symbolizing the hope she feels for brighter days ahead.
