B is the answer to your question
The correct answer is letter a. seeking passage of the Clean Water Act. President Nixon worked to protect the environment by establishing the following: Environmental Protection Agency (EPA), Endangered Species Act, and Clean Air Act. He vetoed the Clean Water Act.<span>
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The statement in Martin Luther King Jr.'s "I Have a Dream Speech" is trying to point out South's racial problems. But the sad part is that it is ignored racial injustice that you can find in the North is not true. Nevertheless, the whole speech is focused more on the South's injustices that is also recognized in the South.