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题目材料：
To ensure the quality of Carverville's municipal water supply, the city government proposes building a filtration plant that will purify water drawn from the city's reservoir. Yet after leaving the filtration plant and before reaching consumers, the water would still have to pass through old, deteriorating pipes that contain numerous contaminants that leach into the water. For this reason, it is unlikely that ____________.
Which of the following most logically completes the argument?
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Aall of the contaminants present in the water in Carverville's reservoir could be removed by the proposed filtration plant
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Bthere would be any improvement at all in the quality of Carverville's water if the proposed filtration plant were built
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Ca filtration plant would eliminate the need for water filtration systems in the homes and offices of people who want water that is free of contaminants
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Dthe level of contaminants in the water the Carverville residents drink could be reduced by replacing the city's old,deteriorating water pipes
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Ethe contaminants in Carverville's old,deteriorating water pipes will ultimately prove harmful to the health of the people who habitually drink water that has passed through these pipes
C显示答案
