The 802.11b protocol defines 14 channels in the 2.4 GHz frequency band , and there is overlap in spectrum between adjacent channels. In order to maximize the use of frequency band resources, which of the following channels can be used for wireless coverage ?

The 802.11b protocol defines 14 channels in the 2.4 GHz frequency band , and there is overlap in spectrum between adjacent channels. In order to maximize the use of frequency band resources, which of the following channels can be used for wireless coverage ?
A . 1 、 5 、 9
B . 1 、 6 、 10
C . 2 、 7 、 12
D . 3 、 6 、 9

Answer: C

Explanation:

The difference between each pair should be ≥5