Which option is the minimum required configuration to enable PIM on a Cisco IOS XR router interface?
A. router pim address-family ipv4 interface GigabitEthernet0/0/0/0
B. router pim interface GigabitEthernet0/0/0/0 address-family ipv4 enable
C. router pim address-family ipv4interface GigabitEthernet0/0/0/0enable
D. router piminterface GigabitEthernet0/0/0/0enable
E. router pimaddress-family ipv4interface GigabitEthernet0/0/0/0address-family ipv4enable