The routers named Testking1 and Testking2 are both configured with RIP only.What will happen in the event of Testking1 receiving a routing update that contains a higher cost path to a network already in its routing table?（）

• A、The update information will be added to the existing routing table.
• B、The update information will replace the existing routing table entry.
• C、The update will be ignored and thus no further action will occur.
• D、The existing routing table entry will be purged from the routing table and all routers will attempt convergence.