Question #6402013Single Choice

Writing and Reading

Question

In context, which choice best combines the underlined sentences?

Options

Aside from lowering worker productivity, artificial light sources are also costly, typically constituting anywhere from 25 to 50 percent of a building’s energy use.

The cost of artificial light sources, aside from lowering worker productivity, typically constitutes anywhere from 25 to 50 percent of a building’s energy use.

Typically constituting 25 to 50 percent of a building’s energy use, artificial light sources lower worker productivity and are costly.

Artificial lights, which lower worker productivity and are costly, typically constitute anywhere from 25 to 50 percent of a building’s energy use.

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