Which Cisco IOS XR command should be used in order to enable LDP-IGP synchronization for the ISIS
IGP protocol?

A.
RP/0/RSP0/CPU0:R1(config-isis-if-af)#mpls ldp sync

B.
RP/0/RSP0/CPU0:R1(config-isis)#mpls ldp sync

C.
RP/0/RSP0/CPU0:R1(config-ldp)#isis ldp sync

D.
LDP-IGP synchronization is not supported for the ISIS IGP protocol on Cisco IOS XR platforms