To set a validation rule that GPA must be between 2.5 and 4, which option is first selected?

To establish a validation rule for a GPA range of 2.5 to 4, the initial step is to access the Data Validation feature, which is found in the Data Ribbon Tab. This functionality allows you to define specific conditions that data must meet before it can be entered into a cell. By selecting the Data Validation button, you can set parameters that ensure any GPA input falls within the specified range.

The other options do not directly pertain to creating validation rules. For example, formula validation does not exist directly as a feature in the Home Ribbon Tab, which may lead to confusion. Cell formatting relates more to how data appears rather than how it is validated, and selecting a validation list does not directly encompass setting numerical conditions but rather limits entries to predefined values or selections. Thus, starting with the Data Validation button is necessary to properly configure the GPA requirement.