You have a data source that shows real estate sales. The data source includes fields that contain the country and the city of each sale, as well as the population of each city. You plan to create visualizations that will present the cities organized by country and in order of population. and want to give users the option of drilling down from country to city.

What should you use to organize the data before you create the visualizations?

Hierarchies

Bins

Groups

Filters