In the context of immigration enforcement, which body is specifically responsible for managing immigration services?

The Department of Homeland Security (DHS) is the correct answer because it is the primary federal agency tasked with the oversight and management of immigration services in the United States. Within DHS, agencies such as U.S. Citizenship and Immigration Services (USCIS) handle the processing of immigration applications, naturalization requests, and other services related to lawful immigration. DHS's mission includes ensuring safe and legal immigration as well as enforcing immigration laws.

The U.S. Customs and Border Protection (CBP) also plays a significant role in immigration enforcement, as it is responsible for securing the borders and preventing illegal entry. However, CBP's focus is more on border security and customs operations rather than the management of immigration services.

The Federal Trade Commission (FTC) and the Environmental Protection Agency (EPA) do not have any direct responsibilities regarding immigration services. The FTC is focused on consumer protection and antitrust laws, while the EPA is concerned with environmental protection and regulation. Thus, neither of these agencies is related to immigration enforcement or management.