The monitor traffic command provides access to which utility?（）

A.debug packet interface-name
B.show interface extensive
C.traceoptions interface-name
D.monitor traffic interface interface-name

A.start shell fpc1
B.start shell tnp1
C.start shell tnp address 1
D.start shell pfe network fpc1

A.show chassis state
B.file list alarm
C.show chassis alarms
D.show chassis environment