You are a network administrator at TestKing, Inc. and you're getting complaintsthat users on the TestKing2 Ethernet network can't access the TestKing1 site. Totroubleshoot this, you begin by looking at the Testking1 and Testking2 routerconfigurations as shown below: Based on the above output, what is the underlying cause of this problem?（）

• A、Link state routing protocol is missing.
• B、Incorrectly configured IP addresses
• C、IGRP is incorrectly configured.
• D、Frame relay is not configured.
• E、None of the above