What can worksheet authors do regarding insert definitions?

The correct choice allows worksheet authors to tailor their content more precisely by overriding the default insert definitions with specific definitions applicable to each worksheet. This flexibility is essential because it enables authors to customize the behavior and appearance of inserts based on the context of the worksheet, ensuring that the content aligns perfectly with its intended use.

This capability enhances the workbook’s functionality, allowing authors to adapt to varying data requirements or user needs, which improves the overall utility and effectiveness of the worksheets. By leveraging this option, authors can create more personalized and contextually relevant experiences for users.

In contrast, other choices do not align with the capabilities available to worksheet authors. Removing all insert definitions or adhering rigidly to default definitions without customization would limit the ability to customize and optimize the worksheet, thus potentially reducing effectiveness. Having multiple default definitions for the same worksheet could lead to confusion, as it may not be clear which definition should apply under varying circumstances. Therefore, enabling authors to override default definitions provides essential control and flexibility in worksheet design.