How would MPLS Label Distribution Protocol, Graceful Restart be configured on TenGigE 0/0/0/1?

A.
Interface Ten0/0/0/1
mpls ip
Graceful-restart

B.
router ospf
interface Ten 0/0/0/1
address-family ipv4 uni
mpls ip
graceful-restart

C.
mpls ldp
address-family ipv4 unicast
mpls ip
graceful-restart

D.
mpls ldp
graceful restart
interface Ten 0/0/0/1

Explanation: