I think the answer is c but I could be wrong!!
Here’s some ideas to help you on what to write about:
1. Describe what you are involved in, clubs, sports, hobbies, etc!
2. Tell your principal about your accomplishments
3. Tell your principal about your goals and how you plan to accomplish them
In this situation, Huck is trying to be impressive. He is trying to get the point across that he is funny and "cool". This lie is not only the one of a kind for Huck, but also one where he tries to push his reputation past its limits.