Triple

Target entity: United States Navy Caribbean Sea Frontier (historical)
Context triple: [Coco Solo Naval Air Station, controlledBy, United States Navy Caribbean Sea Frontier (historical)]

• A. United States Atlantic naval forces
  United States Atlantic naval forces are the U.S. Navy’s operational forces responsible for maritime defense, power projection, and security operations across the Atlantic Ocean and adjacent waters.
• B. U.S. Tenth Fleet
  U.S. Tenth Fleet is the operational arm of the U.S. Navy responsible for conducting and supporting cyber, information, and electronic warfare operations.
• C. United States Fourth Fleet chosen
  The United States Fourth Fleet is a U.S. Navy operational fleet responsible for naval operations, security cooperation, and maritime partnerships in the Caribbean, and Central and South American waters.
• D. United States Sixth Fleet
  The United States Sixth Fleet is a major U.S. Navy operational fleet responsible for naval operations, security, and power projection primarily in the European and African regions, including the Mediterranean Sea.
• E. Maritime Forces Atlantic
  Maritime Forces Atlantic is the Royal Canadian Navy’s principal Atlantic-based formation responsible for commanding and supporting naval operations in the North Atlantic and surrounding waters.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.