Towns and cities require large amounts of energy to meet citizens' needs. This energy is used for items like traffic lights, street lights, and automatic bridges, which keep people safe and allow traffic to flow smoothly. The city leaders of Wrightstown meet to discuss ways to reduce the city's energy use without reducing citizen safety. Which idea will reduce energy usage the most, and have the least effect on citizen safety?
a. Traffic lights will be replaced by traffic cops at every intersection.
b. Street lights will only work on weekdays, and be turned off on weekends.
c. Over time, replace old street lights and traffic lights with solar-powered lights.
d. Replace all traffic lights with stop signs, creating four-way stops at all intersections.
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