One way that governments can conserve energy is through legislation. The US government has enacted a set of guidelines called the corporate average fuel efficiency (CAFE) standards. CAFE standards require that automobile manufacturers produce new cars that have a certain minimum fuel efficiency each year. How would raising the required minimum fuel efficiency conserve energy?
A. Older cars would become less fuel efficient and start using less fuel
B. New cars would be less fuel efficient and use less fuel
C. New cars would be more fuel efficient and use less fuel.
D. Older cars would become more fuel efficient and start using more fuel