Which two are published IEEE 802.11 wireless transmission standards? (Choose two.)

Which two are published IEEE 802.11 wireless transmission standards? (Choose two.)
A . 802.1 If
B . 802.11g
C . 802.11k
D . 802.11m
E . 802.11n

Answer: BE

Explanation:

The 802.11 family consists of a series of half-duplex over-the-air modulation techniques that use the same basic protocol. 802.11-1997 was the first wireless networking standard in the family, but 802.11b was the first widely accepted one, followed by 802.11a, 802.11g, 802.11n, and 802.11ac.