Answer: B. Using too much jargon means you are using words that may be unfamiliar to the audience.
Jargon are words "technical" words that are used in different professions. These words are words that may be understood by people who have the same profession as the speaker, but these words are not totally understood by the general public.
Here are some advice that may help in creating a presentation:
1. Make your presentation straight to the point.
2. Always and ALWAYS assume that not everybody has the same technical understanding of your presentation.
3. Never put too much information into a slide.
These are just some of the key points in presenting.