Which process describes how an addressed physical interface is moved into a Layer 2 zone?

Which process describes how an addressed physical interface is moved into a Layer 2 zone?

A.
Remove the address from the interface, remove the interface from the L3 zone, and then place interface in the L2 zone.

B.
Place the required interface into L2 zones such as V1-Trust, V1-Untrust

C.
Place the required interface into the VLAN zone.

D.
Remove the interface from the L3 zone such as Trust and place it into a L2 zone such as V1-Trust