Which two statements about the Cisco WCS alarms and events are true? (Choose two.)
A. An alarm is the listing of an SNMP trap from a WLAN controller.
B. An event can be a report about radio interference crossing a threshold.
C. An alarm is a Cisco WCS response to one or more related events.
D. An event summary of critical, major, and minor events is displayed at the top of the Cisco WCS page.