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.