How can data displayed in Appian 'Grids' be refined?

The ability to refine data displayed in Appian 'Grids' significantly enhances usability and user experience. Option B is correct because Appian provides built-in functionalities that allow users to use filters, sorting mechanisms, and customizable columns to interact with and manipulate the data effectively.

Filters enable users to narrow down the data displayed based on specific criteria, making it easier to find relevant information. Sorting can be applied to arrange the data in a predefined order, such as ascending or descending, based on selected attributes. Customizable columns give users the flexibility to choose which data points are visible, allowing them to tailor the grid to their specific needs and preferences.

This combination of tools within the Appian interface empowers users to manage large datasets more efficiently, improving the overall analysis and decision-making process. The other options do not provide the same level of direct interaction and specificity in refining grid data.