Which two are considered as characteristics of the original 802.11 protocol? (Choose two.)

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Which two are considered as characteristics of the original 802.11 protocol? (Choose two.)
A . The most common deployment is three non-overlapping channels that are 20 MHz wide.
B . Defined FHSS and OFDM as possible methods for modulation.
C . The most common deployment is 6 non-overlapping channels that are 20 MHz wide.
D . Designed to operate in the 5 GHz ISM frequency spectrum.
E . Defined DSSS and FHSS as possible methods for modulation.

Answer: AB