Refer to the exhibit. Two routers have just been configured by a new technician. All interfaces are up. However, the routers are not sharing their routing tables. What is the problem?

A.
Split horizon is preventing Router2 from receiving routing information from Router1.

B.
Router1 is configured for RIP version 2, and Router2 is configured for RIP version 1.

C.
Router1 has an ACL that is blocking RIP version 2.

D.
There is a physical connectivity problem between Router1 and Router2.

E.
Router1 is using authentication and Router2 is not.