Which two statements about forwarding equivalence class （FEC） are true？（）

• A、FEC might correspond to a destination IP subnet， but it might also correspond to any traffic class that the edge LSR considers significant.
• B、FEC is a group of IP packets that is forwarded over a different path， but with the same forwarding treatment.
• C、FEC is a group of IP packets that is forwarded over the same path， and with the same forwarding treatment.
• D、FEC is a group of IP packets that is forwarded over a different path， but with the different forwarding treatment.
• E、FEC is a group of IP packets that is forwarded over the same path， but with a different forwarding treatment