Which three checks must you perform when troubleshooting EIGRPvB adjacencies? (Choose three.)
A. Verify that IPv6 is enabled.
B. Verify that the network command has been configured.
C. Verify that auto summary is enabled.
D. Verify that the interface is up.
E. Verify that an IPv4 address has been configured.
F. Verify that the router ID has been configured.
