A network administrator needs to deploy seven equally spaced WAPs along an underground
tunnel. Which of the following is the BEST channel design to avoid interference?

A.
1, 3, 5, 7, 9, 11, 1

B.
1, 6, 11, 1, 1, 6, 11

C.
1, 11, 1, 11, 1, 11, 1

D.
11, 1, 6, 11, 1, 6, 11