Refer to the exhibit. An administrator has added the exhibited commands to routers A and B, but no routing updates are exchanged between the two routers. Based on the information that is given, what is the likely cause of the problem?
- Router A is advertising the wrong network.
- The authentication key strings do not match.
- The serial interfaces of routers A and B are not on the same network.
- The authentication key numbers do not match the EIGRP process number for both routers.
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