Which Statement Best Summarizes the Effectiveness of U

Which statement best summarizes the effectiveness of U.S. environmental policies enacted over the past 30 to 40 years?

A) They have led to significant improvements in the environment and have improved the quality of our natural resources.
B) Surface water quality has improved across the board, while air quality remains poor.
C) They have had mixed results: While point source pollution has declined and urban air quality improved, other conditions have not improved.
D) The Superfund cleanup efforts have been much more cost effective than expected.

Correct Answer:

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