DBMS_RESOURCE_MANAGER_PRIVS is the Oracle package specifically designed for granting and revoking resource manager privileges to users and roles. It contains procedures like GRANT_SYSTEM_PRIVILEGE and REVOKE_SYSTEM_PRIVILEGE for managing resource group access. DBMS_REPCAT_AUTH and DBMS_REPCAT_ADMIN are for replication management. DBMS_RESOURCE_MANAGER is the main package for creating and managing resource plans and consumer groups, not for granting privileges.