When the BGP additional-paths feature is used, what alows a BGP speaker to differentiate between the different available paths?
A. The remote BGP peer prepends its own next-hop address to the prefix
B. A route distinguisher is appended to the prefix by the receiving BGP speaker
C. A unique path identifier is encoded into a dedicated field to the NLRI
D. The additional path information is encoded in an ectended community
