Unlike a slideshow that is made up of multiple slides, a prezi is just a single page or

A map-like assembly of links on one page that grants access to detailed information on other pages.

Explanation:
Instead of moving from slide to slide in a presentation, a prezi has one page with a descriptive map like access to the entire presentation. This enables the viewer to zoom in on specific pages, and to pull back to reveal the contextual meaning of the page.
The use of prezis can be found on many HTML pages.

The answer is rom or read only storage devices

For question 1, i'm a bit stuck between serif fonts or large enough type to read. serif fonts are good fonts to use because their easy to read. but you also need your type be large enough to read. if i had to say what you need to consider most important, i would say d is the answer.  for question 3, i believe the answer is d. it seems most appropriate to do that. on every page or every other page would be too much, and only on the contact page just seems inappropriate.  for question 4, it's probably a. by "color scheme" it doesn't mean just one color, but a set of colors. colors that are complimentary to each other. having too many is too distracting so it's best to limit it as much as possible, but not to the point where your website looks dull.hope this !