Click the Exhibit button.
Based on the output in the exhibit, which statement is correct?
A . R4 has been configured with an IS-IS export policy and is announcing external routing information.
B . R3 and R4 have an adjacency at both level 1 and level 2.
C . R3 has been configured so that it is not used for transit traffic.
D . R3 and R4 have only a level 2 adjacency.
Answer: D