Final answer:
Willa Cather and Isabel Allende differ in that Cather wrote about prairie life, whereas Allende writes about political change, reflecting her Chilean heritage and political experiences.
Step-by-step explanation:
One way that Willa Cather is different from Isabel Allende is that Willa Cather wrote about prairie life, while Isabel Allende writes about political change. Based on the information provided, this corresponds to the multiple-choice options given in the question. Isabel Allende is noted for her narrative style that incorporates magical realism and romantic elements, and her work often reflects her Chilean heritage and political background, including themes of exile and social justice. Conversely, Willa Cather is known for her novels depicting frontier life on the Great Plains and her vivid portrayal of the American Midwest.