What Flow Builder element is specifically used to add a local action?

The element in Flow Builder specifically used to add a local action is the Action element. In Salesforce Flow, actions allow you to perform tasks such as creating records, sending emails, or calling an Apex class among other operations within the same flow. Local actions are particularly useful as they enable user interactions without navigating away from the current context, enhancing the user experience during the flow journey.

When using the Action element, you can define specific behaviors and processes that occur at the point where the action is included in the flow. This ensures that local actions can be executed seamlessly, integrating well with other elements of the process. Thus, the Action element is essential for executing operations that need to respond to user input or trigger specific outcomes based on flow conditions.

Choosing Action as the correct answer reflects an understanding of how local actions function within Flow Builder to facilitate dynamic and interactive processes.