Triple

Target entity: New Scotland Yard (historic building at 10 Broadway)
Context triple: [St James's Park tube station, isWithinWalkingDistanceOf, New Scotland Yard (historic building at 10 Broadway)]

• A. New Scotland Yard (Victoria Embankment) building
  The New Scotland Yard (Victoria Embankment) building is a prominent late 19th-century London police headquarters known for its distinctive Victorian Gothic Revival architecture.
• B. Duncan House, Cornhill, London
  Duncan House, Cornhill, London was the London residence associated with Admiral Adam Duncan, noted as the place where the British naval hero died.
• C. New Scotland Yard chosen
  New Scotland Yard is the iconic central headquarters building of London's Metropolitan Police Service, symbolizing policing and law enforcement in the United Kingdom's capital.
• D. Prudential Assurance Building, Holborn Bars, London
  Prudential Assurance Building, Holborn Bars, London is a prominent Victorian Gothic red-brick office complex in central London, designed in the late 19th century as the headquarters of the Prudential Assurance Company.
• E. Hyde Park Barracks, Knightsbridge, London
  Hyde Park Barracks in Knightsbridge, London is a prominent British Army installation best known as the central base for the ceremonial cavalry units that guard royal residences and perform state occasions.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.