Answer:
There are several types of supporting material that you can pull from the sources you find during the research process to add to your speech. They include examples, explanations, statistics, analogies, testimony, and visual aids.
Explanation:
She could argue that you don't need to sell the same thing every year and therefore, we could all try something different this year, not just candy.
She also could argue that candies are not healthy and it's time to distance ourselves from them for now.
The best argument that she could pull off would be, if that was really the case, if fruits were easier and more profitable to sell. By far, if that was the argument, they would all sell fruit easily.
C. He mentions knives to describe how the cold wind feels.
Out of all of these, I would say this answer provides the most detailed descriptions/sensory details. It also makes use of metaphors to give more depth.
Hope this helps :)