Refer to the exhibit.
A customer runs OSPF with Area 5 between its aggregation router and an internal router. When a network change occurs in the backbone, Area 5 starts having connectivity issues due to the SPF algorithm recalculating an abnormal number of times in Area 5. You are tasked to redesign this network to increase resiliency on the customer network with the caveat that Router B does not support the stub area. How can you accomplish this task?
A. Set Area 5 to stubby at the ABR anyway.
B. Increase the bandwidth on the connection between Router A and Router B.
C. Turn on LSA throttling on all devices in Area 5.
D. Implement LSA filtering on the ABR, allowing summary routes and preventing more specific routes into Area 5.
E. Create a virtual link to Area 0 from Router B to the ABR.
