The answer is letter A. The Clear Air Act would be a reason for the Environmental Protection Agency or EPA to regulate car emissions. EPA sets the emission standards under the said rule or regulation and this also covers the green house gas emissions.
When Rosa Parks refused to give up her seat to a white man, this case a big issue. When she did not follow the orders she was later arrested. News soon spred about Rosa Park's arrest.
Martin Luther King Jr. came later and helped to orginize the Mintgomery Bus Boycott. For over a year a lot of African Americans walked everywhere instead of taking the bus. Later the bus drives would be forced to intograte their bus.
That person is Andrew Mellon.
The correct answer is letter E
Explanation: The American Protective League worked with the Justice Department to identify radicals.