what are three operations performed by the service provider’s PE routers?

— Exhibit –

— Exhibit —

Refer to the Exhibit.
Referring to the exhibit, what are three operations performed by the service provider’s PE routers?
(Choose three.)

A.
Modify the VRF label assigned using MP-BGP.

B.
Maintain the customer’s /32 loopback internal routes.

C.
Use MP-EBGP to send Customer Site 2’s internal routes to CE-1.

D.
Maintain the customer’s external routes.

E.
Maintain routes internal to the provider’s network.

Explanation: