For the configuration of a VLAN port, what is the correct option described below?
A
When a port is removed from a VLAN other than the default VLAN, the port will be added to the default VLAN.
B
When adding a port that has been configured to another VLAN to another VLAN, you must first remove the port from the original VLAN by using the configuration command.
C
You can configure a trunk port to this VLAN when you configure the port that belongs to the VLAN using the port command in the VLAN view.
D
In the VLAN view, you can use the undo port command to delete the port of the default VLAN 1.