In an 802.11 ERP-OFDM system, what channel pairs are considered non-overlapping? C2

A.
Channels 4 and 10

B.
Channels 1 and 4

C.
Channels 3 and 7

D.
Channels 1 and 10

E.
Channels 8 and 11

F.
Channels 5 and 8