What is NOT true regarding PW QoS?

A.
A policy action can be applied for packets matched by DLCI.

B.
LLQ can be applied to traffic classified per COS on ethernet AC.

C.
CB-WFQ can be applied to traffic classified per COS on ethernet AC.

D.
The command `set cos’ is used to modify the .1p cos bits in a policy.

E.
The command `set vlan’ is used to modify the VLAN tag in a policy.

F.
All of the above