When should a company deploy HP M111 Client Bridges?

A.
when the company has legacy devices that support Ethernet, but the devices need to connect
to 802.11g APs

B.
when the company wants to deploy APs that support 802.11n in the 5 GHz band, though some
client devices only support the 2.4 GHz band

C.
when the company needs to monitor client transmissions as part of an integrated wireless
intrusion detection system/intrusion prevention system (IDS/IPS)

D.
when the company has multiple small sites that require only one AP to provide coverage but
need that AP to support guest services locally