Which three statements about configuring OSPF in a IPv6 network are true? (Choose three.)

A.
OSPF version 2 will support IPv6.

B.
OSPF version 3 will support IPv6.

C.
Multiple instances of OSPF for IPv6 can be run on a link.

D.
Networks must be explicitly configured using the network command in router OSPF
configuration mode.

E.
IPv4 addresses cannot be used as the router ID in OSPF for IPv6.

F.
The interface command ipv6 ospf <process-id> area <area-id> is all that is required to
enable OSPF for IPv6 on an interface.

Explanation:

http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-ospf.html