Which term completes the rule: avoid superimposing call-to-action buttons in images, especially those that aren't ___?

Which term completes the rule: avoid superimposing call-to-action buttons in images, especially those that aren't ___?

• A. functional
• B. legible
• C. clickable
• D. scalable

Answer: (A)

This tests the idea that a call-to-action overlay in an image should actually perform the action it suggests. If a button looks like a CTA but doesn’t work when users try to engage with it, it creates a misleading experience and can frustrate or disappoint viewers. That’s why the word that fits best is functional—it captures whether the button delivers a real, working action. Legible focuses on readability, which is important but doesn’t address whether the button actually functions; clickable suggests interactivity but not necessarily that it leads somewhere or performs the intended action; scalable is about size or resolution, not about the button’s operation.

This tests the idea that a call-to-action overlay in an image should actually perform the action it suggests. If a button looks like a CTA but doesn’t work when users try to engage with it, it creates a misleading experience and can frustrate or disappoint viewers. That’s why the word that fits best is functional—it captures whether the button delivers a real, working action. Legible focuses on readability, which is important but doesn’t address whether the button actually functions; clickable suggests interactivity but not necessarily that it leads somewhere or performs the intended action; scalable is about size or resolution, not about the button’s operation.