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Which feature can reduce this instability on the service provider network?

In a Service provider network , a NOC engineer identifies and interface that flaps continuously.
This interface connects to an EBGP peer.
Which feature can reduce this instability on the service provider network?
A. BGP PIC
B. IP event Dampening
C. IGP Prefix Prioritization
D. Non-stop Forwarding
Correct Answer: B