Exhibit, show ip bgp neighbor 10.1.1.1
Output

What is causing the BGP session to the 10.1.1.1 neighbor to remain in the Idle state?

A.
There is an AS number configuration error

B.
The EBGP-multihop value for neighbor 10.1.1.1 is set to the default value.

C.
There is an access-list blocking TCP port 179 traffic between the two BGP neighbors.

D.
The BGP session is using the loopback interface but the update-source is not set to specify the loopback interface.