What are possible causes of the "hidden node" problem with 802.11 WLANs? Choose 3

A.
Data frames too large for the physical environment

B.
Client stations broadcasting with too much power

C.
Access points broadcasting with too little power

D.
Client stations too close in proximity to each other

E.
Interfering obstacles between client stations

F.
Large 802.11 cells with physically distributed stations

G.
802.11 radios with distributed antenna systems