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