You are designing a wireless infrastructure for an enterprise customer in the busy international banking district of Tokyo. All the client adapters are fairly modern, so you have turned off 802.11b speeds to reduce the size of your cells. Which channels will you choose to make optimum use of the available spectrum?
A. 1, 5, 9, 13
B. 1, 6, 11
C. 1, 6, 11, 14
D. 1, 4, 7, 11, 14
E. 1, 5, 9
