* Parallel Sharing Rule Recalculation: * This feature in Salesforce processes sharing rule recalculations concurrently across multiple threads, significantly reducing processing time for large organizations with complex role hierarchies. * Why Option B is Correct: * Universal Containers' complex role hierarchy and planned reorganization will trigger significant sharing recalculations. Parallel Sharing Rule recalculation ensures that the system handles these efficiently. * Why Others Are Incorrect: * Option A: Divisions are used for partitioning data but do not directly address sharing rule recalculations. * Option C: Skinny tables optimize query performance but do not influence sharing operations. For more details, refer to Salesforce Sharing Recalculation Best Practices: https://help.salesforce.com/