Which three statements about the Cisco wireless IPS solution are true?

Which three statements about the Cisco wireless IPS solution are true? (Choose three.)

A.
It enables stations to remain in power-save mode, except at specified intervals to receive
data from the access point.

B.
It detects spoofed MAC addresses.

C.
It identifies potential RF jamming attacks.

D.
It protects against frame and device spoofing.

E.
It allows the WLC to failover because of congestion.