How do you create a hierarchy in Tableau?

Creating a hierarchy in Tableau is achieved by dragging one field onto another in the data pane. This method allows you to organize dimensions into a structured format that makes it easier to analyze data at different levels of detail. For instance, if you have a "Country" field and a "City" field, by dragging "City" onto "Country," you establish a relationship where cities are subcategories of countries. This hierarchical structure enables drill-down capabilities, allowing users to explore data with granularity.

The other options do not provide the functionality needed to create a hierarchy effectively. Selecting fields from the menu does not facilitate the creation of a hierarchy; it’s more related to choosing data for analysis. Using a predefined template does not apply to the hierarchical structure of data; rather, it focuses on layout and visualization. Writing a complex formula is unnecessary and unrelated to the straightforward action required to create a hierarchy. Thus, the correct answer clearly encompasses the intuitive and direct approach to building hierarchies within Tableau.