Answer:
none of the above
Explanation:
Different sites like the processing plants and manufacturing sites in the United States were seen to be largely contaminated by hazardous wastes that are either not properly managed or indiscriminately dumped and left out in the open.
Such practices happened in 1970s when the people learnt how bad these sites can be by posing risks to the environment and to their health. This prompted the congress to establish the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) in 1980 which gave rise to the superfund.
Any party that contaminates similar areas would clean it up by themselves or reimburse the government the money for cleanups. These monies are then given to Environmental Protection Agency (EPA) by the superfund, together with the authority they need for them to come in and cleanup contaminated sites.