
The figure above shows the inside dimensions, in feet, of a certain room. An architect made a scale model of the room that had a floor and four walls, but not a ceiling. What was the scale of the model, in inches per foot, if the inside of the model had a total surface area of 2,304 square inches?
A. 0.25
B. 0.75
C. 1.8
D. 2
E. 4
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