What is the normal procedure for IFR departures at locations with pretaxi clearance programs?
A.Pilots request IFR clearance when ready to taxi.The pilot will receive taxi instruction with clearance.
B.Pilots request IFR clearance when ready to taxi.Pilots will receive taxi clearance, then receive IFR clearance while taxiing or on runup.
C.Pilots request IFR clearance 10 minutes or less prior to taxi, then request taxi clearance from ground control.
正确答案是C