TOEFL Reading: ETS-TOEFL阅读机经 - 3SQ142K8F84UK37KL$

According to paragraph 3, why did the United States Fish and Wildlife Service want the Edwards Dam removed? A. Because the age of the dam made it unsafe B. Because the dam was negatively affecting various species of fish C. Because the dam had caused wetlands to form D. Because the dam no longer provided economic benefits