Question 29 (2 points) Which item below does NOT represent an element of U.S. national transportation policy today? 0 a. Competition. 0 b. Promotion 0 c. Cross-subsidization Q d. All of the above are elements of the nation's transportation policy. Question 30 (2 points) What happened with respect to air transport provided to those communities that lost air service after the Airline Deregulation Act was passed in 1978? C) 3. Some regained service. 0 b. Some service was lost forever because there was insufficient demand. 0 c. The government subsidized some service that would have otherwise been lost. 0 d. All of the above occurred