The central idea of a story refers to the main message or theme that the author wants to convey. Out of the options you provided, "Do not give up, even when something seems impossible" could be a potential central idea of the story. This suggests that the story may focus on perseverance and overcoming challenges. However, without more context or information about the story, it's difficult to determine the exact central idea. If you can provide more details or specific information about the story, I can try to provide a more accurate answer.