Which four options are the characteristics of the original 802.11 protocol? (Choose four.)

Which four options are the characteristics of the original 802.11 protocol? (Choose four.)
A . Defined DSSS and FHSS as possible methods for modulation
B . Designed to operate in the 5 GHz ISM frequency spectrum
C . The most common deployment is three non-overlapping channels that are 20 MHz wide
D . The protocol sets the maximum throughput at 1 Mb/s or 2 Mb/s
E . Defined FHSS and OFDM as possible methods for modulation
F . The most common deployment is three non-overlapping channels that are 22 MHz wide
G . Designed to operate in the 2.4 GHz ISM frequency spectrum
H . The protocol sets the maximum throughput at 1 Mb/s

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Answer: A, D, G, F