Which item can be stored in an ArcGIS Pro project for future use?

Layouts are indeed a key component that can be stored in an ArcGIS Pro project for future use. They play an essential role in the representation of spatial data by providing a visual arrangement of various elements, such as maps, legends, titles, and other graphical annotations. By saving layouts, users can preserve the design and formatting of their maps, making it easy to revisit, modify, or share them later without needing to recreate the visual elements from scratch. This functionality enhances workflow efficiency for users engaged in map production or presentation.

In contrast, while scripts can be associated with a project for automation or task execution, they are not typically stored as project items but rather as standalone files or within toolboxes in the project. Data frames, while relevant in earlier versions of ArcGIS, are not used in the same manner in ArcGIS Pro since the software relies on layout views instead. Groups can be created to help organize layers within the Contents pane but are not a distinct feature that is stored as a separate item in the project. Therefore, the ability to store layouts is a vital characteristic that supports effective map design and presentation in ArcGIS Pro projects.