Which two statements are true about SAFI & AFI?
A. Subsequent Address Family identifier (SAFI) provides additional information about the type of the Network Layer ports carried in the BGP update
B. Address Family identifier (AFI) field carries the identity of the Network Layer ports for which the BGP speaker intends to advertise multiple paths
C. Subsequent Address Family identifier (SAFI) provides additional information about the type of the Network Layer Reachability Information carried in the attribute
D. Address Family identifier (AFI) carries the identity of the Network Layer protocol for which the BGP speaker intends to advertise multiple paths
