Which of the Following Statements About the Environment and Environmental

Which of the following statements about the environment and environmental protection is most accurate?

A) Pollution on Ohio's Cuyahoga River was so bad that the river caught on fire in 1969.
B) Before the 1970s, the federal government had pursued no measures to protect the environment.
C) Environmental protections established in the 1970s have failed to prevent rising levels of pollution.
D) Although environmental protections established in the 1970s have prevented pollution levels from rising, they have failed to reduce pollution levels significantly.
E) Since an initial flurry of legislation in the 1970s, Congress has passed no new environmental legislation.