It takes 5 hours to fly from San Francisco to New York by jet. A passenger leaves at noon from San Francisco and arrives 8:00 P. M. How did the passenger lose 3 hours on a 5-hour flight? (A. The plane made two stops: one in Dallas and one in Kansas City to pick up and drop off passengers.)
(B. New York is located in the eastern time zone, so it was already 3:00 in the afternoon in New York when the jet left San Francisco.)

(C. Strong head winds in the jet stream often slow air travel.)
(D. Bad weather will often force aircraft to reroute around weather systems causing delays.)