An Administrator working with IBM Security QRadar SIEM V7.2.8 needs to delete a single value named User1 from a reference set with the name "Allowed Users" from the command line interface.Which command will accomplish this? A. ./UtilReferenceSet.sh purge "Allowed Users" User1 B. ./ReferenceSetUtil.sh purge "Allowed Users" User1 C. ./ReferenceSetUtil.sh delete "Allowed\ Users" User1 D. ./UtilReferenceSet.sh delete "Allowed\ Users" User1