Which three statements are true about server-generated alerts? (Choose three.)
A. Server-generated alerts notify administrators of problems that cannot be resolved automatically
B. Alerts are not issued for locally managed read-only tablespaces
C. Response actions cannot be specified for server-generated alerts.
D. Stateful alerts car be queried only from the DBA_ALERT_HISTORY view.
E. When an alert is cleared, it Is moved to the DBA_ALERT_HISTQRY view.