Refer to the configuration exhibit, taken from a Cisco IOS-XR router.
Which configuration change is required to properly enable this router as the signaling router for implementing source-based RTBH filtering?
A . Set community (no-export) in the route policy
B . Pass in the route policy
C . Set local-preference 1000 in the route policy
D . The 192.0.2.1/32 static route should be tagged as 666 (tag 666)
Answer: A