Answer:
D. Symbol
Step-by-step explanation:
In this excerpt, the literary device that is being used by the author is symbol. A symbol is a literary device in which an idea, term or object stands for something more than its literal meaning. Symbols are representative of other aspects, meanings, or concepts that are not present in a literal way in a story. In this case, Mrs. Mallard is fighting against something that is described as possessing her. This description is a way to symbolically represent the concept of freedom.