The theme that best describes the story you are referring to would depend on the specific content and context of that story. However, based on the options provided, the most broadly applicable theme related to deception and its consequences seems to be:
D. If people are not careful, tricksters and hustlers will take advantage of them.
This theme reflects a cautionary perspective on the potential risks of deception and manipulation in social interactions. If you can provide more context about the story, I could help narrow it down further!