To determine how the author completes the development of a universal theme in the story, you would typically look at how character development, dialogue, and changes in perspective contribute to the overall message. Based on the options provided:
- The option that suggests showing how Ruky’s behavior has changed in response to the events in the story aligns well with the idea of character development reflecting a universal theme.
- The option about Cora stating the theme explicitly in dialogue would suggest a less nuanced approach to theme development.
- The option regarding Cora’s mindset toward Ruky changing by the end indicates character growth and transformation that can also relate to the theme.
- Having Ruky state the theme explicitly would similarly reduce the thematic nuance.
Considering all options, "by showing how Ruky’s behavior has changed in response to the events in the story" is the most effective choice for completing the development of a universal theme, as it reflects character growth and the impact of events on behavior, illustrating a broader lesson or message.