A bookstore owner has chosen to add a 720x720 MP4 video ad placement to their In-stream Video campaign.In Campaign Manager 360, which action should they take to include this video format and resolution in their campaign?

To ensure the 720x720 MP4 video ad plays correctly across various devices and bandwidths, the bookstore owner needs to enable the appropriate transcoding option in Campaign Manager 360. Transcoding converts the original video file into different formats and resolutions, making it compatible with various player requirements. Simply uploading the video file isn't enough, as it needs to be processed for delivery. Sending a new tag to publishers is unnecessary at this stage, as the ad serving tag remains the same; only the creative asset is being prepared. Enabling all transcoding options is inefficient and can lead to unnecessary processing and storage, as only the specific formats needed for the campaign should be selected.