According to the U.S. supreme court, many wetlands were removed from the protection of the clean water act because they existed solely within single states, which means option A is the right answer.
The Clean Water Act of 1972 was aimed at reducing pollution in water bodies and required permits for the discharge of pollutants at places where materials are directly dumped into a body of water. Wetlands are areas of high diversity and are protected by government because they not only act as biodiversity hotspots but also attract tourists and are source of generating revenue for the government. The owners of printing companies in Tennessee opposed the U.S. clean water act because it would put restrictions on the drainage policy of the company and will cause harms by levying penalties.
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