Which option describes a feature of user groups?

User groups play an essential role in the management of user permissions and activities within a marketing automation platform. The feature that specifies their use for round-robin lead assignments is accurate because user groups can be configured to ensure that leads are distributed evenly among group members.

In scenarios where a team handles incoming leads, setting up a round-robin assignment through user groups helps maintain fairness and efficiency, preventing any single member from being overwhelmed while ensuring every member gets an opportunity to engage with leads.

The other options do not accurately describe user groups. For instance, offering unlimited access to all folders is an overstatement, as user groups typically come with restrictions based on assigned permissions. Similarly, the idea that user groups restrict users from all marketing activities does not align with their purpose; rather, they are designed to streamline access and collaboration. Lastly, user groups do affect access to reports, as permissions can limit visibility based on the group's configuration. Thus, the statement about round-robin lead assignments accurately reflects the functionality and practical impact of user groups in managing lead-related workflows.