单项选择题
HowisSNCPandMS-SPRingtrafficreroutedduringaprotectionswitchwhenacompletefibercablecutoccurs?()
A.SNCPtrafficisswitchedfromthefirstnodethatrecievestheAIS.MS-SPRingtrafficisreroutedfromthefirstinthering.
B.SNCPtrafficisselectedatthedestinationnodeinthering.MS-SPRingisreroutedfromtheoriginatingnodeinthering.
C.SNCPtrafficisreroutedfromtheoriginatingnodeinthering.MS-SPRingtrafficisreroutedfromtheoriginatingnodeinthering.
D.SNCPtrafficisselectedatthedestinationnodeinthering.MS-SPRingtrafficisreroutedfromthelastreachablenodeinthering.