单项选择题
WhichbestrepresentsatypicalattackthattakesadvantageofRFC792，ICMPType3messages？（）
- A.Blindconnection-reset
B.Largepacketechorequest
C.Packetfragmentationoffset
D.Broadcast-basedechorequest
E.Excessivebandwidthconsumption
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