The Smart Fortwo car is a small two-passenger vehicle that was developed to provide convenient transportation, especially in crowded urban areas, and to be fuel efficient and environmentally friendly. In 2006 the United States became the 37th nation in which the Smart car was marketed, appealing substantially to consumers who were concerned about the environment and the high price of gas. Taken together, these facts suggest that the development and international marketing of this vehicle likely drew on the all of the following sources of information except: Oa. Observing economic trends. Ob. Listening to customers. Oc. Observing social and cultural trends. Od. Listening to Formula One racing enthusiasts. 4 A