Answer:
b. the environment
Step-by-step explanation:
The EPA (Environmental Protection Agency) is a federal agency in the United States that is responsible for setting and enforcing regulations related to environmental protection. The agency's main mission is to protect human health and the environment by developing and enforcing regulations that address issues such as air and water pollution, hazardous waste, and the use of chemicals and pesticides. The EPA also works to promote sustainability and encourage the use of renewable resources. Therefore, option B is the correct answer.