In the case of Ethernet transport, which two types of attachment circuits does L2TPv3 support?
(Choose two.)

A.
port tunneling on the Ethernet subinterface

B.
VLAN tunneling on the Ethernet trunk

C.
port tunneling on the Ethernet interface

D.
VLAN tunneling on the Ethernet VLAN subinterface

E.
port tunneling on the Ethernet trunk