The correct answer is the following.
Chopin’s diction and imagery in lines 80-84 contributed to her characterization of a transformed Mr. Mallard in that despite of continuing to feel depressed and sad for the death of her husband, her true feeling was that she was happy for being free from him. The excerpt refers to the freedom she felt when “countless sparrows were twittering in the eaves.” The other part says “The notes of a distant song which some one was singing reached her faintly”. Those are expressions of freedom and happiness. Mrs. Mallard changes can be noted in phrases like “her eyes become clean and dry”.