As an implementation consultant, you are in the process of setting up geographies in the application.
Which three statements are true about defining geographies? (Choose three.)
A. You must set geography validation for the specific address style for a country.
B. You must identify the top-level of geography as Country and define a geography type.
C. You can only modify all levels of the geography structure before you load geography hierarchy.
D. It is mandatory to define geography validation before geography hierarchy can be defined.
E. You must map geography to reporting establishments for reporting purposes.