- Auto-expand
- Collapsed
- Main
- Expanded
The correct answers are: Collapsed, Main, and Expanded
Explanation: Two of the basic functions of an expanding creative are to help the website identify the object in your file that represents the collapsed panel and to determine the expanding direction. In the HTML, create three panels:
- Main panel: Contains both collapsed and expanded panels
- Collapsed panel: Contains collapsed panel contents
- Expanded panel: Contains expanded panel contents
Read more here:https://support.google.com/richmedia/answer/3191055