Triple

Target entity: U.S. Department of the Navy
Context triple: [Commander, Naval Station Guantanamo Bay, operatesUnder, U.S. Department of the Navy]

• A. Department of the Navy chosen
  The Department of the Navy is a U.S. federal executive department responsible for organizing, training, and equipping the United States Navy and Marine Corps as key maritime components of the nation’s armed forces.
• B. Secretariat of the Navy
  The Secretariat of the Navy is Mexico’s federal government department responsible for naval operations, maritime security, and administration of the Mexican Navy.
• C. General Board of the United States Navy
  The General Board of the United States Navy was an advisory body established in the early 20th century to guide U.S. naval policy, strategy, and ship design before and between the World Wars.
• D. Department of Naval Services
  The Department of Naval Services was a former Canadian government department responsible for administering and overseeing the country’s naval forces before its functions were absorbed into the Department of National Defence.
• E. Office of the Chief of Naval Operations
  The Office of the Chief of Naval Operations is the senior headquarters staff organization of the United States Navy that supports the Chief in directing naval operations, planning, and administration.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.