Which statement is true regarding the Association Identifier (AID) used in IEEE 802.11 WLANs?

A.
The AID has a maximum value of 2048, and is used to uniquely identify a wireless client station associated with an access point.

B.
The AID has a maximum value of 2007, and resides in the duration/ID field of a PS-Poll frame.

C.
When bit 16 of the field is zero, the value in bits 15-0 represent the remaining duration of a frame exchange.

D.
The least significant 8 bits of this field are used by the wireless client station to identify which bit in a TIM indicates that the access point has frames buffered for the wireless client station.

E.
The AID is used by the access point in EDCA mode to reduce duplicate transmissions when sending multicasts.