Which three object types can you use in a Web Intelligence universe query?

Class is a folder structure used to organize and group Dimension, Measure, and Detail objects within the universe outline; it is a container and cannot itself be added to a query.

Detail objects provide supplementary descriptive attributes linked to a Dimension object and can be selected and included in a query's result set.

Measure objects represent aggregated numeric values such as sales totals or counts and are a primary object type used in Web Intelligence queries for analysis.

Dimension objects define the analytical axes of a report such as product or region and are the foundational object type available for selection in a universe query.

User Defined is not a recognized or standard object type within a SAP BusinessObjects universe; all universe objects are classified strictly as Dimension, Measure, or Detail.