When BGP is used as the PE-CE routing protocol, which of these statements is correct?

A.
On PE routers, the CE IBGP neighbors are configured in the global BGP configuration.

B.
On PE routers, the CE EBGP neighbors are configured in the VRF context.

C.
When using BGP as the PE-CE routing protocol, only public AS numbers can be used when configuring the BGP neighbor relationships.

D.
On the CE router, PE neighbors must be configured in the VRF context on the CE router.

E.
A separate BGP process must be used on the PE routers for CE routers so that they do not use the same BGP routing process as that used for the PE router’s other provider neighbors.