A Technician Connects a Cisco Aironet 3700 Series Access Point

Multiple Choice

A technician connects a Cisco Aironet 3700 Series access point to a switch and realizes that the AP is coming up with 3x3 MIMO. Which reason explains this behavior?

A) A redundant power supply is unavailable on the switch.
B) The switch is 802.3af capable.
C) The AP is getting power from a power injector.
D) The switch is PoE+ capable.