Ow does The Story of an Hour by kate chopin criticize the social institution of marriage?

Instructions for this writing assignment:
1) Analytical essay roughly 750 words long for the story The story of an hour glassby, Kate Chopin
2) MLA format
3) All sources must come from the original text
4) Include a thesis related to the topic
5) Include a Title for the essay
6) A bibliography page for the essay
7) Include supporting arguments in the body paragraphs
8) The conclusion must include the thesis, just rewritten differently