The price of titanium dioxide, a key ingredient in house paint, is increasing due to limited supplies because many mining companies that once produced titanium ore have shifted production to other ores. Without titanium dioxide, paint colors are less bright and more coats of paint must be applied to compensate. Companies that produce paint have concluded that they will soon need to increase the prices on the paint they produce.
Which of the following would, if true, most strongly support the companies` conclusion?
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APrices for paint ingredients other than titanium dioxide are not likely to increase.
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BPlants that make titanium dioxide from titanium ore can be idled and restarted relatively quickly.
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CThe production cost of paint without titanium dioxide is not low enough to make such paint economically viable to compete with paint containing titanium dioxide.
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DBecause of recent increases in the price of titanium ore, mining companies that shifted production to other ores are now shifting back to producing titanium ore.
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EManufacturers of paint typically contract with chemical makers to lock in the price for at least a year's supply of titanium dioxide at a time.
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正确答案: C