ou are an airline flight scheduler in charge of creating the "live schedule" for sale to the travelers. Where do you begin? Group of answer choices (A) By performing detailed evaluations of potential cities for the airline to serve (B) By taking a fixed fleet of aircraft, a network of airports, a specific period of time, and a lengthy list of operating constraints to build the schedule (C) By determining how many aircraft should be purchased and how many should be leased (D) By establishing training schedules for pilots and crew members (E) Answers A and D