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 the larger 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.