Which of the following is true of Content ID?
Content ID is only available to channels with >1 million subscribers.
Content ID scans all uploads and removes portions that infringe copyright.
Content ID enables rights holders to block, track, or monetize uploads that use copyrighted content.
Content ID allows viewers to flag harmful or dangerous content.
Content ID is a genuine system developed to manage and protect your copyrights at scale. As the result, copyright owners can use a system to easily identify and manage their content on YouTube, and choose a policy to apply. Every time somebody uploads a video and on a regular basis after that videos are scanned against a database of files that have been submitted to us by content owners.
Copyright owners using content ID can apply and manage their policies. In other words, they can choose different actions to take. For example, they can choose to block, Monetize or Track videos.
So, in this case, which of the following is true of Content ID? As explained above, content owners can choose what action to take, whether to block, monetize or track videos which match the content they own.
Learn more on the official Google support website.