How can you remove unused swatches from the swatches library in Adobe Illustrator?

The process of removing unused swatches from the swatches library in Adobe Illustrator can indeed be done effectively through the correct choice, which involves navigating to the swatches library and selecting the unused swatches to delete them. This option allows users to visually assess which swatches are not being used in the current document and remove those items, streamlining the swatch library for better organization and efficiency.

Clear organization is crucial in design work, especially when dealing with complex projects with numerous color options. By selectively deleting unused swatches through this method, designers can maintain a cleaner workspace and prevent confusion that could arise from having irrelevant colors accessible.

The other options do not accurately reflect how swatches are managed within Adobe Illustrator. For instance, there might not be a direct function to clear unused swatches from the swatches panel or within preferences. When managing swatches, direct interaction with the swatches library is the most effective method, ensuring that users can precisely control what remains in their palette.