The correct answer is B.
The Federal Bureau of Investigation ( FBI ), is the domestic intelligence and security service of the United States. It operates under the jurisdiction of the Department of Justice.
The FBI has jurisdiction over counter-terrorism, counterintelligence and criminal investigative organizations.
FBI maintains 56 field offices in major cities throughout the United States and it operates 60 Legal Attache offices all over the world.
The agency was established in 1908 as the Bureau of Investigation and the name changed in 1935. The agency's headquarters is located in Washington, D.C.