Demand and Supply Shifters In the market for air travel, four events occur one at a time. A. Airfares rise, while train fares don't change. B. The price of jet fuel falls. C. Airlines reduce the number of flights each day. D. People expect airfares to increase next summer. Which of the following statements about the market for air travel is correct? Group of answer choices Event B increases the demand for air travel. Events A, B, and C decrease the supply of air travel. Event C decreases the demand for air travel. Event D changes neither the supply of nor the demand for air travel. Event A changes neither the supply of nor the demand for air travel