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Director: Our engineers are considering two different sites—one on the Abaco River and one on the Bornos River— for a hydroelectric plant. Although we have the technical expertise to build roughly the same plant in either place, producing roughly the same amount of electricity per hour, building the plant on the Abaco site will cost over twice as much money. With our budget currently in deficit, we should build the dam at the Bornos site. Which of the following, if true, best explains the difference in building costs for the two proposed dam sites? (A) Many farms along the lower Bornos River valley would benefit from the controlled flow of water a dam would make possible. (B) The Abaco site is in an inaccessible area, requiring the building of new roads and the importation of laborers. (C) The Bornos site is near a large city whose residents could use the resulting lake for inexpensive recreation. (D) The Abaco site is in an area that contains many endangered species that would be threatened by the new dam. (E) The Abaco River has a relatively low volume of flow, making it impossible to expand an Abaco plant to meet future electricity needs.
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