单选题Which of the following wireless technologies is primarily setup for video/audio and the frequency is 5 GHz?（）A CellularB 802.11aC 802.11bD Satellite
题目
单选题
Which of the following wireless technologies is primarily setup for video/audio and the frequency is 5 GHz?（）
A
Cellular
B
802.11a
C
802.11b
D
Satellite