Which action causes the solution to fail?

Refer to the exhibit.

A network engineer is configuring customer edge routers to finalize a L2VPN over MPLS deployment Assume that the AToM L2VPN service that connects the two CEs is configured correctly on the service provider network.

Which action causes the solution to fail?
A . A loopback with a /32 IP address has not been used
B . OSPF does not work with L2VPN services
C . The x connect statement has not been defined
D . The routing protocol network types are not compatible

Answer: C