Which two statements about the output are true?

Refer to the exhibit, which shows the output of a debug command.

Which two statements about the output are true? (Choose two.)
A . The local FortiGate OSPF router ID is 0.0.0.4.
B . Port4 is connected to the OSPF backbone area.
C . In the network connected to port4, two OSPF routers are down.
D . The local FortiGate is the backup designated router.

Answer: A,B

Explanation:

Area 0.0.0.0 is the backbone area.