Which two UNII bands and channels should you restrict the APs to use on the 5 GHz radios?

You are designing an autonomous wireless network for an office building that is located near a
local airport. The customer requires the use of 802.11a/n clients only, and the APs must never
change their channel after they are configured. Which two UNII bands and channels should you

restrict the APs to use on the 5 GHz radios? (Choose two.)

A.
UNII-1 and UNII-3

B.
UNII-1 and UNII-2 extended

C.
36-52 and 149-161

D.
36-48 and 100-140

E.
52-64 and 149-161

F.
36-48 and 149-161