Which design approach should be taken?

An engineer is designing a new wireless network.

The network needs to meet these requirements

• support a high wireless client concentration

• support data over wireless

• support voice over wireless

• avoid interference

Which design approach should be taken?
A . 5 GHz frequency band with channel bonding, to support 40 MHz channels
B . 5 GHz frequency band without channel bonding, to support 20 MHz channels
C . 5 GHz frequency band with channel bonding, to support 80 MHz channels
D . 2.4 GHz frequency band without channel bonding to support 20 MHz channels