A city council proposes replacing all traditional streetlights with LED lights, arguing this will significantly reduce the city's energy consumption. However, critics argue that the proposal will not achieve the stated goal. Which of the following, if true, most strengthens the critics' argument?
✓ Correct Answer: Option C
If most of the city's energy consumption is from other sources (like public buildings), then changing streetlights will not significantly reduce overall consumption, thereby strengthening the critics' claim that the stated goal will not be met.