A customer has configured a 3000 controller with the following commands:
Vlan 55
Vlan 56
Vlan 57
Interface gigabitethernet 1/0
switchport mode trunk
switchport trunk native vlan 55
switchport trunk allowed vlan 55-57
Which of the following sentences best describes this port?

A.
All traffic in vlan 55 will be dropped and all traffic in vlan 56 and 57 will be trunked with and
802.1Q tag

B.
All traffic in vlan 55, 56 and 57 will be trunked with an 802.1Q tag

C.
All traffic in vlan 55 will be sent with an 802.1Q tag while vlan 56 and 57 traffic will be trunked
untagged

D.
All traffic in vlan 56 and 57 will be sent with an 802.1Q tag while vlan 55 traffic will be trunked
untagged

Explanation: