Refer to the exhibit.

The customer has an MPLS Layer 3 VPN service CE-A is not able to ping the CE-B loopback address 10.60.6.6 CE-A is able to ping the CE-B network interface address 172.16.60.66. What must be added to the configuration to allow the loopback ping to work?

A.
The PE-B configuration needs a neighbor 10.60.6.6 command added

B.
The PE-B configuration needs interface loopback0 added under vrf red area 0

C.
The CE-B configuration needs to static route added for the PE-B connected interface

D.
The CE-B configuration needs network 10.60.6.6 under router ospf 1