Which office is responsible for enforcing federal laws?

The Department of Justice is tasked with enforcing federal laws, making it the appropriate choice for this question. It is the federal executive department responsible for overseeing the enforcement of laws, representing the United States in legal matters, and ensuring the fair and impartial administration of justice. This includes not only prosecuting federal crimes but also managing federal law enforcement agencies like the FBI and the Drug Enforcement Administration.

The other offices mentioned serve different roles within the government. The Supreme Court, for example, interprets federal laws but does not enforce them; it resolves legal disputes and ensures laws comply with the Constitution. The Executive Office of the President provides support and guidance to the president and has several components focused on policy and administration, but it does not directly enforce laws. The Federal Reserve is involved in monetary policy and financial regulation, rather than the enforcement of federal laws. Thus, the Department of Justice clearly stands out as the correct answer in the context of enforcing federal laws.