What functionality do drill links provide for worksheet widgets?

Drill links offer a valuable functionality by enabling users to access detailed information within worksheet widgets. This feature allows users to dive deeper into specific data points or segments represented in the worksheet, such as a summary chart or table. When a user clicks on a drill link, it typically expands the view to uncover more granular details associated with that particular data point, providing insights that are not available at the summary level. This capability enhances data analysis by allowing users to explore and understand the underlying reasons or contributors to the summarized data they are viewing.

In contrast, the other choices do not accurately describe the purpose of drill links. For example, they do not facilitate the editing of data directly, nor do they prevent modification of charts or provide merely a summary of key metrics. Instead, the primary goal of drill links is to enhance clarity and depth in data exploration, allowing for a more interactive and informative experience when analyzing data.