When installing three 2.4GHz access points in close proximity, which of the following channel selections would be BEST?

In the 2.4GHz Wi-Fi band, channels 1, 6, and 11 are the only three non-overlapping channels that are 20MHz wide. Using these channels for access points in close proximity prevents co-channel interference, which ensures optimal wireless performance and stability.

Channels 2, 3, and 9 overlap significantly with adjacent channels (e.g., channel 2 overlaps with 1 and 3, channel 3 overlaps with 1, 2, 4, 5, etc.), causing severe interference.

Channels 2, 4, and 7 also overlap significantly with neighboring channels, leading to high levels of interference and reduced Wi-Fi performance.

Channels 8, 10, and 11 overlap with each other and other standard channels (e.g., 8 with 6, 10 with 6 and 11), creating substantial interference and degrading network quality.