单项选择题
Whichstatementbestdescribestheapplicationoflinkfragmentationandinterleaving（LFI）？（）
A.ItcompressestheLayer2payloadandmarksthepacketasahighprioritytobetransmittedfirst
B.ItfragmentslargerpacketsandallowsVoIPpacketstobetransmittedinbetweenthem.
C.Itstopsthetransmissionoflargepacketswhenprioritypacketsarrive.
D.Itsendshighprioritypacketsinbetweennormaltrafficpackets.