The following statement about the alliance is correct? (Single choice questions).

The following statement about the alliance is correct? (Single choice questions).
A . The consortium divides an AS into sub-AS, and the alliance external AS still considers the consortium to be an AS
B . Subsystems within a consortium can use private AS numbers. Huawei NE/AR routers, a consortium can be configured with up to 32 subsystems
C . Consortium can easily detect the routing loop within the AS because EBGP is running between the subA
E . The subas number of the consortium, which by default notifies BGP peers outside the consortium

Answer: D