Which Analytics 360 feature enables you to create a dataset representing a broad business overview from multiple source properties?

The feature that enables you to create a dataset representing a broad business overview from multiple source properties is the roll-up properties functionality in Analytics 360. Roll-up properties are specifically designed to aggregate data from multiple different properties into a single, higher-level view. This allows businesses to analyze data across various environments, such as different websites or apps, all under a unified structure.

By utilizing roll-up properties, organizations can gain insights into comprehensive performance metrics like user engagement, conversions, and behavior spanning across all their digital assets. This holistic perspective is particularly valuable for larger businesses that manage multiple brands or product lines, helping them to understand their overall performance without having to manually compile data from each individual source.

Other features mentioned in the options serve different functions: shared audiences are used for audience targeting across properties, data import allows for bringing external data into Analytics, and linking properties facilitates cross-device tracking and user journey analysis. However, none of these features create a unified dataset for broad business overviews as effectively as roll-up properties do.