📊 GMAT Exam Prep

To reduce city-wide energy consumption, officials plan to replace all streetlights with LED bulbs, which consume significantly less power. However, critics argue this will not significantly reduce overall consumption because residential energy use is far greater than that of streetlights.

A The cost of installing new LED streetlights is prohibitive for the city budget.
B A significant portion of residential energy use is for lighting.
C Many residents are already replacing their household bulbs with LEDs.
D The energy saved by LED streetlights will be offset by increased energy usage in other municipal services.

✓ Correct Answer: Option B

The critics weaken the plan by arguing streetlight consumption is a small fraction. To weaken their argument (and strengthen the plan), we need to show that streetlight energy reduction is more impactful. Option B introduces a separate factor (residential LED adoption) that does not directly relate to the impact of *streetlights* on overall consumption, but rather to the overall energy picture.

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