In Cisco IOS XR Software, Label Distribution Protocol (LDP) would be configured on POS 0/0/0/0 using which commands?
A. interface pos 0/0/0/0mpls 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 ldpaddress-family ipv4 unicast interface pos 0/0/0/0 mpls ip
