Answer:
There are three main types of pottery/ceramic. These are earthenware, stoneware and porcelain.
Explanation:
The answer is (d.) choose only the visuals that are easily understood.
The main purpose of the visual aids is to help improve the understanding of the audience to the presentation. It clarifies and reinforce the key points of the topic. So it's important to choose the appropriate visual that could help the presentation easily understood.
A.Adena Indians if you search it up it tell you
Corbel dome: arch like construction method to span a space or void in a structure such as a entryway.
Tholos: Beehive like tomb; Burial structure made out of mud bricks and stones.
Rotunda: Round building or dome.