The Inventory Carrying Costs of Airlines Is High Because They

The inventory carrying costs of airlines is high because they

A) use a straight salary compensation plan for the large numbers of flight attendants.
B) have high-salaried pilots and very expensive equipment.
C) allow baggage personnel to work overtime.
D) decrease the number of workdays per week,but increase the hours per day.
E) use a commission compensation system for their reservationists.