Final answer:
Video verification metrics such as Audio muted at start and Video Prominence Score are essential for assessing viewer engagement and the prominence of a video in its setting. These metrics are important for advertisers and content creators to measure the effectiveness and quality of their video content. Option 2 and 3 are correct.
Step-by-step explanation:
Among the various video verification metrics, two important ones are Audio muted at start and Video Prominence Score. The Audio muted at start metric measures whether the audio of a video was muted when the video first began playing. This can be crucial for advertisers and content creators to understand the viewers' initial engagement with video content. On the other hand, the Video Prominence Score is an indicator of how noticeable a video is within a given setting, which may include factors like size, positioning, and visibility duration on the viewer's screen.
Verifying these metrics helps stakeholders to assess the quality and effectiveness of video content and its potential impact on the audience. While Eligible impressions for audio could be considered as a broader metric that encompasses audio performance overall, Audio muted at finish is not commonly referred to as a standard video verification metric.