Final answer:
Answer D is correct; Cinderella marries the prince and helps her sisters marry lords, reflecting the marriage-focused happy endings common in Disney princess movies.
Step-by-step explanation:
The correct answer to what happens to Cinderella and her sisters is: D: Cinderella marries the prince and Cinderella matches her sisters with lords to marry. This ending is part of the narrative that often portrays girls and women in Disney movies, where they are frequently depicted as princess figures. Although Cinderella's step-sisters treated her poorly, in the end, Cinderella shows kindness by helping them marry lords from the court. This reflects the trend in Disney movies where characters like Snow White, The Little Mermaid, and Beauty and the Beast often end with the lead female characters finding a version of a happy ending in marriage, despite the different challenges they face.