The Table Below Displays Hypothetical Demand and Supply Schedules for the Market

The table below displays hypothetical demand and supply schedules for the market for overnight parcel deliveries in Canada. TABLE 3-4 Refer to Table 3-4.Which of the following events could explain the change in the market for overnight parcel delivery between Year 1 And Year 2?

A) There was a decrease in the price of jet fuel.
B) The price of regular parcel delivery decreased.
C) Consumer preferences changed toward a desire for overnight delivery.
D) The number of suppliers of overnight parcel delivery service increased.
E) The government introduced a subsidy for overnight parcel delivery.