Traditional incandescent lightbulbs use more electricity than lightbulbs of
more recent design. The graph shows consumer trends in lightbulb sales over
a three-year period in North America. What claim is supported by the data in
the graph?
A. Americans are using fewer energy resources than they have in the
past.
B. American society is shifting toward more-sustainable lightbulbs.
C. American society has a tradition of using energy-efficient
products.
D. Americans are buying fewer lightbulbs than they have in the past.