The Variables panel is a panel in UiPath Studio that allows you to create and manage variables in a workflow file. You can change the name, type, scope, and default value of a variable in the Variables panel. When you update the name of a variable in the Variables panel, all the activities that use that variable in the current file are automatically updated with the new name. This ensures that the variable references are consistent and valid throughout the workflow. However, if the variable is used in other workflow files, such as invoked workflows or libraries, you need to manually update the name in those files as well. Therefore, the answer is C. All variable names are automatically updated in the activities in the current file. References: Managing Variables, Variables