What must be done after defining a storage tiering rule to begin tiering data from...

According to the IBM Spectrum Protect documentation1, the action that must be done after defining a storage tiering rule to begin tiering data from directory-container pool to tape is C. execute the rule. This action can be done by using the START STGRULE command or by clicking Run Now in the Operations Center1. This action will start processing the storage tiering rule immediately without waiting for its scheduled start time1.