A student is using notes about nighttime lighting policy for a brief informational paragraph: - A dark-sky ordinance is a local rule that limits certain outdoor lighting to reduce light pollution. - It matters because it can protect night views, wildlife, energy use, and astronomical observation. - It may require shielded fixtures, lower brightness, or warmer light colors. - It often balances safety, business needs, and environmental concerns. The student wants to write one concise sentence that will combine the relevant notes to explain the concept of a dark-sky ordinance without including distracting details. Which choice most effectively uses relevant information from the notes to accomplish this goal?