How could you best describe the relationship between assets and videos on YouTube?

In YouTube's Content ID system, a video is the user-facing content that people watch. An asset, however, is a digital representation of an intellectual property, such as a musical composition or a sound recording. When a video is uploaded to YouTube, it is matched against existing assets in the Content ID database. If a match is found, the video is linked to that asset. Therefore, a single video can contain multiple assets (e.g., a video featuring a song would contain both a sound recording asset and a musical composition asset). Conversely, a single asset can be associated with many videos (e.g., a popular song's asset would be linked to numerous user-uploaded videos using that song). The other options are incorrect because assets and videos are distinct concepts, and videos contain metadata, but assets are the core intellectual property definitions.