If you want an online presentation, I think you mean by a website.
Best thing you can find is Google Slides.
if you want a program,
LibreOffice is your best bet. It is completely free and it is for Linux, Windows and possibly Mac.
Answer:WAN
Explanation:
This means Wide Area Network. It is a combination of about two local area networks designed to serve a large geographical area such as a city.
C. Set up a slide show. Slide shows allow the most room for explanation and information when it comes to live presentations.
IPSec
Hope that helps, Good luck!! (:
