(a) Canva ACTS: the creator uses its interface to select elements, edit, group, and align graphics to create a music-themed design. The video is a tutorial demonstrating how to use Canva's features to achieve a specific result. Removing Canva would make the video impossible as the entire process is dependent on its tools. (b) Stan Store APPEARS: the creator's link in bio is a Stan Store page, which is the destination for the CTA. Removing it would change the destination of the CTA but not the content of the video.