Universal Containers (UC) outsources all maintenance work to contractors, based on a contract that is...

To stop a resource from receiving work, you must mark them as inactive and ensure the scheduling engine respects that status.

Option C is correct:Deactivating the Service Resource(unchecking the "Active" checkbox on the record) is the standard way to "fire" or terminate a resource. It preserves history but flags them as no longer working7.

Option A is correct:You must ensure yourScheduling Policyincludes theActive ResourcesWork Rule8. This rule explicitly tells the optimization engine: "Do not assign appointments to any resource where Active = False." Without this rule, the engine might still technically assign work to an inactive record if no other constraints block it.

Option B(Delete) is bad practice (data loss).

Option D(Excluded Resources) is for specificjob-by-jobexclusions (e.g., "Don't send Bob to this specific customer"), not for global termination.