Which command initiates a packet trace for all PPP packets on interface atm 6/1.33?

A.
log filter debug pppPacket atm 6/1.33

B.
log severity debug pppPacket atm 6/1.33

C.
log filter debug category pppPacket atm 6/1.33

D.
log severity debug category pppPacket atm 6/1.33