2015
2014
Percentages of Lightbulbs Sold Annually
to Residents in North America, by Type
• Halogen
Incandescent
2013
Compact fluorescent
(CFL)
Light-emitting diode
(LED)
0% 10% 20% 30% 40% 50% 60% 70%
Fluorescent
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A. Lightbulbs that are more sustainable are becoming more popular.
B. Americans are buying fewer lightbulbs than they have in the past.
C. A government mandate to use more-sustainable lightbulbs is not
working.
D. Incandescent lightbulbs are more cost-efficient than halogen
lightbulbs.