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/