What is a sharing set in Salesforce Community Cloud?

A sharing set in Salesforce Community Cloud is indeed a method that gives users access to records associated with their accounts or contacts. In a community context, particularly when working with community users who might not have full Salesforce licenses, sharing sets play a crucial role in granting access to relevant data. This functionality allows communities to efficiently share records from the organization that are related to the specific user, making it easier for them to engage with content and complete transactions without the need for complex permission structures.

By leveraging sharing sets, administrators can ensure that community users can view and interact with certain standard and custom objects linked to their account or contact records. This enhances the user experience by providing relevant information while maintaining appropriate security and data access levels for external users.

In contrast, options that discuss assigning roles or defining access levels for internal users don't align with the function of sharing sets, which is specifically focused on extending access to related records to community users based on their own context, rather than managing internal user permissions or roles.