A main idea, key details, and understandable language.
Explanation:
Without a main idea, well... there's no point to your debate. You need to make it clear what you're arguing for (aka what side you're on) so your audience and opponents can grasp the gist of what you stand for. Key details are especially important because you can't make an argument without evidence. That would then be a baseless claim, you always need accurate specifics as to why your idea/side is the better option. Lastly, understandable language is always important because a debate is verbal and your judges/opponents need to understand what you are saying in order to fully comprehend what you're advocating for.
The ultimate goal is to persuade and get your point across.
In Jack London's "To build a fire" the main theme is Man vs. Nature, the main character is crossing the Alaskan frozen landscape, following the path of the Yukon river. He dismisses the advice of the old-timer and he also doesn't pay attention to his companion, the dog who can feel the threat of the harsh weather. The right answer is the second option.
