Refer to the exhibit.

Area 1 routers must have only a default route in their OSPF routing tables.
Which configuration must be completed on XR2 to meet this requirement?

A.	router ospf 1 address-family ipv4 interface GigabitEthernet0/0/0/1 area 1 stub no-summary
B.	router ospf 1 area 1 stub no-summary
C.	router ospf 1 area 1 stub interface GigabitEthernet0/0/0/1
D.	router ospf 1 area 1 stub no-summary interface GigabitEthernet0/0/0/1