Examine the following excerpt from the show ip ospf database asbr -summary command on router R1 (RID 1.1.1.1). Which answer can be verified as definitely true based on this output?（） LS Type: Summary Links (AS Boundary Router) Link State ID: 9.9.9.9 (AS Boundary Router address) Advertising Router: 3.3.3.3 LS Seq Number: 8000000D Checksum: 0xE43A Length: 28 Network Mask: /0 TOS: 0 Metric: 100

• A、The output describes the contents of a Type 5 LSA
• B、3.3.3.3 identifies a ro uter as being the router performing redistribution
• C、R1's metric for its best route to reach the router with RID 9.9.9.9 is 100
• D、The router with RID 3.3.3.3's metric for its best route to reach the router with RID 9.9.9.9 is 100