The map above shows air release, or emissions, sites across the united states. these sites include locations such as smokestacks, factories, and high vehicle traffic areas. which of the following statements demonstrates how these data relate to potential externalities? a)the data show potential negative externalities for people living in industrial areas b)the data show potential negative externalities for loss of public transportation c)the data show potential positive externalities for job growth d)the data show potential positive externalities for urban development