What three options are needed to meet the requirements?

A business analyst is creating an app for technicians. The app must meet several requirements

• Visualization labels must change according to the selected tame period

• A button to toggle between Month and Year to Date (YTD)

• Two fields combine to create one dimension that is used m several visualizations.

What three options are needed to meet the requirements? (Select three.)
A . Master items
B . Variables
C . Calculated fields
D . Alternate states
E . Set analysis