RTA# show ip route ospf
O IA 18.104.22.168/8 [110/65] via 22.214.171.124, 00:00:28, Serial2/1/0
O* E2 0.0.0.0/0 [110/1] via 126.96.36.199, 00:00:16, Serial2/1/0
Refer to the exhibit. On the basis of the information presented, which statement is true?
A - A default route is configured on the local router.
B - Network 188.8.131.52/8 was learned from an OSPF neighbor within the area.
C - OSPF router 184.108.40.206 is an ABR.
D - The default route is learned from an OSPF neighbor.
I didn't got the idea of the answer, so anyone can help?