You are asked to configure an OSPF network based on the topology shown in the exhibit. Area 1 must not receive Type 5 LSAs from the backbone, but must be capable of containing ASBRs.
What will accomplish this?

A.
Area 1 should be configured as a stub area, which by default meets the network’s requirements.

B.
R3 should be configured with no-externals for Area 1, which will suppress Type 5 announcements.

C.
R3 should be configured with no-summaries for Area 1, which will suppress Type 5 announcements.

D.
Area 1 should be configured as an NSSA, which by default meets the network’s requirements.