![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
What defines a BGP confederation?()
A.
autonomous-system 64555;confederation 1111 ;
B.
autonomous-system 64555; confederation 1111 members [ 64555 64777 ];
C.
confederation 64555; autonomous-system 1111 members [ 64555 64777 ];
D.
sub-autonomous-system 64555; confederation 1111 members [ 64555 64777 ];