Refer to the exhibit.

Which configuration on XR2 provides R1 with only the minimum routing information to reach the
rest of the network?

A.
Router isis ABC
interface GigabitEthernet0/0/0/1
circuit-type level-2-only

B.
Router isis ABC
interface GigabitEthernet0/0/0/0
circuit-type level-1-2

C.
Router isis ABC
interface GigabitEthernet0/0/0/1
circuit-type level-1

D.
Router isis ABC
interface GigabitEthernet0/0/0/0
circuit-type level-1