What provides implicit record access to users based on their relationship to a parent account?

The concept of implicit record access is fundamental in Salesforce's sharing and visibility model. It operates on the principle that users can access records based on their relationships within a hierarchy. In this case, when a user has access to a child record, such as a child case, they are implicitly granted access to the parent account.

This means that if a user can view or edit specific records that are children of an account, they automatically inherit access rights to the parent account associated with those children. This built-in relationship allows for streamlined data access and ensures that users aren't burdened with manually managing access to every related record.

Therefore, the choice indicating that a user with access to a child case has read-only access to the parent account correctly identifies how the relationship between parent and child records governs access rights within Salesforce. This implicit access is significant for maintaining data integrity and ensuring that related records are appropriately secured without requiring excessive configuration.