Which of the following best describes the function of the service label?

A.
Customer traffic is encapsulated with a service label by the egress PE. The service label
identifies which transport tunnel to use.

B.
Customer traffic is encapsulated with a service label by the egress PE. The service label
identifies the specific service the data belongs to.

C.
Customer traffic is encapsulated with a service label by the ingress PE. The service label
identifies which transport tunnel to use.

D.
Customer traffic is encapsulated with a service label by the ingress PE. The service label
identifies the specific service the data belongs to.