Which two statements are true about MLP interleaving？ （）
- A It fragments and encapsulates all packets in a fragmentation header.
- B Packets smaller than the fragmentation size are interleaved between the fragments of thelarger packets.
- C Packets larger than the fragmentation size are always fragmented， and cannot be interleaved，even if the traffic is voice traffic.
- D It fragments and encapsulates packets that are longer than a configured size， but does not encapsulate smaller packets inside a fragmentation header.