For campaigns in Display & Video 360, the frequently available creative dimensions for mobile in-app inventory are 320×50, 320×480, 300×250, 728×90, and 768×1024.
- 320×50, 320×480, 336×280, 728×90, 768×1024
- 120×600, 320×50, 320×480, 300×250, 728×90
- 160×600, 320×50, 320×480, 336×280, 728×90
- 320×50, 320×480, 300×250, 728×90, 768×1024
The correct answer is: 320×50, 320×480, 300×250, 728×90, 768×1024
Explanation: These dimensions are essential for advertisers aiming to optimize their mobile in-app advertising efforts within Display & Video 360. The specified sizes ensure ads are suitably formatted for a variety of mobile devices, enhancing visibility and user engagement. By utilizing these standard dimensions, advertisers can create visually appealing and effective advertisements tailored to the mobile in-app environment, maximizing campaign performance and audience reach.
Read more here: https://support.google.com/displayvideo/answer/3017252