Which three commands must you enter to create a trunk that allows VLAN 20? (Choose three.)
A.
Switch(config-if)#switchport mode dynamic auto
B.
Switch(config-if)#switchport mode trunk
C.
Switch(config-if)#switchport trunk allowed vlan 20
D.
Switch(config-if)#switchport mode dynamic desirable
E.
Switch(config-if)#switchport trunk encapsulation dotlq
F.
Switch(config-if)#switchport trunk native vlan 20