()isthepopularLANdevelopedunderthedirectionoftheIEEE802.5.()isthepopularbackbonetechnologyfortransmittinginformationathigh speedwithahighleveloffaulttolerancewhichisdevelopedunderthe directionofANSI.
A.Ethernet,FDDI B.Token Bus,Ethernet C.Token Ring，FDDI D.DQDB,QinQ正确答案C
