EIGRP is being used as the routing protocol on the company network. While troubleshooting somenetwork connectivity issues， you notice a large number of EIGRP SIA （Stuck in Active） messages.What causes these SIA routes？（）

• A、The neighboring router stops receiving ACK packets from this router
• B、The neighboring router starts receiving route updates from this router
• C、The neighboring router is too busy to answer the query （generally caused by high CPUutilization）
• D、The neighboring router is having memory problems and cannot allocate the memory to processthe query or build the reply packet