Which of the following flow control settings allows resumption of suspended output by hitting the "R" key？（）

A.Enable routed on the server
B.Enable gated on the server
C.Enable ipforwarding on the server
D.Set network options back to default

A.Shuts down en0
B.Displays en0 settings
C.Reconfigures en0 using the ODM
D.Sends an SNMP alert to the network administrator

A.en0
B.et0
C.ent0
D.tok0