- Expandable creative
- Banner creative
- Interstitial creative
- Floating creative
The correct answers are: Interstitial creative and Floating creative
Explanation: An interstitial is an ad that either floats on a webpage or fills the screen on a mobile device. Desktop interstitials can move with content or stay locked on a page as the user scrolls.
Read more here: https://support.google.com/richmedia/answer/184819