What is wrong with the configuration?

Referring to the partial Cisco IOS-XR BGP configuration exhibit, when trying to commit this configuration, the following error is displayed:

% Failed to commit one or more configuration items during a pseudo-atomic operation. All changes made have been reverted. Please issue ‘show configuration failed’ from this session to view the errors.

What is wrong with the configuration?
A . IPv6 unicast routing has not been enabled globally using the ipv6 unicast-routing command
B . The configuration is missing the required network command
C . The update-source loopback 0 commands must be configured under the respective neighbor address-family
D . The configuration is missing the address-family ipv4 unicast and address-family ipv6 unicast commands under router bgp 65111

View Answer

Answer: D