An interior designer is creating a lighting specification for a client's kitchen. Which of the following pieces of information is MOST critical to include to ensure the desired lighting effect and proper installation?
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A
The brand name and the designer's preferred vendor.
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B
A photo of the fixture from a design magazine.
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C
Color Rendering Index (CRI), color temperature, lumen output, and voltage.
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D
The cost per unit and the estimated delivery date.