How will the access points react to the wattage that is available in 802.1af?

An engineer has just deployed a Cisco Aironet 3702 Access Point with an access layer switch that supports IEEE 802.1af Power over Ethernet.

How will the access points react to the wattage that is available in 802.1af?
A . disable the BVI interface
B . fail to boot in CAPWAP mode
C . operate in 3×3 MIMO mode
D . enable the 2.4-GHz radios with 40-MHz channel bonding

Answer: C