What options in the YouTube Editor allow interactivity to be added to videos?

Cards are a feature in the YouTube Editor that enable creators to add interactivity to their videos. They can be used to promote other videos, channels, playlists, or external websites. When viewers click on a card, they are presented with additional options or content, making the viewing experience more engaging and allowing creators to direct traffic strategically to their other content.

In contrast, trimming video length focuses solely on editing the video to adjust its duration and does not provide interactivity. Annotations were used in the past to add notes or links to videos, but they have largely been replaced by cards, which are more versatile and mobile-friendly. Music enhances the auditory aspect of a video but does not contribute to interactivity. Therefore, cards stand out as the correct choice for adding interactive features in the YouTube experience.