When designing the coverage area for high call capacity, what two actions should you take with data rates and channels? (Choose two

When designing the coverage area for high call capacity, what two actions should you take with data rates and channels? (Choose two.)

A.
Avoid channels with high AP co-channel interference.

B.
Use channels with high AP co-channel interference to avoid channel roaming.

C.
Set the 2.4-GHz data rate of 5.5 Mb/s to required.

D.
Use 5-GHz channels when possible.

E.
Use 2.4-GHz channels when possible.