Please answer the following question: Formulate an answer to this elaborate question: The 56th Air Refueling Squadron is an active unit of the United States Air Force, it operates Boeing KC-46 Pegasus aircraft, conducting initial and advanced aircrew training for air refueling operations, the Boeing KC-46 Pegasus is a military aerial refueling and strategic military transport aircraft developed by Boeing, from which one of its jet airliner?
A:
767