Which configuration adds an IPv4 interface to an OSPFv3 process in OSPFv3 address family configuration?
A . Router ospf3 1 address-family ipv4
B . Router(config-router)#ospfv3 1 ipv4 area 0
C . Router(config-if)#ospfv3 1 ipv4 area 0
D . Router ospfv3 1 address-family ipv4 unicast
Answer: C