In Cisco IOS XR Software, Label Distribution Protocol (LDP) would be configured on POS 0/0/0/0
using which commands?

A.
interface pos 0/0/0/0
mpls ip

B.
mpls ldp
interface pos 0/0/0/0

C.
router ospf
interface pos 0/0/0/0
address family ipv4 uni
mpls ip

D.
mpls ldp
address-family ipv4 unicast
interface pos 0/0/0/0
mpls ip