Refer to the Exhibit

Multiple Choice

Refer to the exhibit. A network engineer applied configuration on R5 to summarize all OSPF routes, but R4 is still receiving specific routes from R5. The engineer has confirmed that both R5 and R4 routers are configured with correct summarization configuration, but R5 is not sending the summary routes. What action must the engineer take to fix the problem?

A) Remove summarization configuration on R5 and configure it on R4
B) Clear link-state database on both R4 and R5 routers for summarization to work
C) Configure a sham link between R4 and R5 to support summarization within Area 2
D) Move R4 and R5 in separate areas as now they maintain the same link-state database