A B
Apex managed sharing is maintained across record owner changes.

A. Ensuring the developer can more easily troubleshoot programmatic sharing: Apex Sharing Reasons allow developers to define custom sharing reasons that are then used when creating sharing records via Apex. This capability makes it easier for developers to understand and troubleshoot the sharing logic implemented in custom applications. By having a clear, custom-defined reason attached to each share, developers can quickly identify why a particular record was shared programmatically, facilitating debugging and maintenance.

C. Ensuring the Share record is deleted upon ownership change: When a record's ownership changes, Salesforce automatically removes all sharing entries associated with the record that were added through manual sharing or Apex sharing. This is intended to reset the record's sharing to reflect the new owner's sharing settings. Apex Sharing Reasons are part of this mechanism, ensuring that any programmatically shared access is appropriately recalibrated to match new ownership, maintaining the integrity and security model of the data. This process helps prevent unauthorized access following changes in record ownership....