Triple

Target entity: British ensigns
Context triple: [Flag Institute, focus, British ensigns]

• A. British ensign system chosen
  The British ensign system is a heraldic and maritime flag scheme that uses different colored field-and-canton designs (notably red, white, and blue with the Union Flag in the canton) to distinguish various branches and functions of British and Commonwealth maritime services.
• B. British Blue Ensign
  The British Blue Ensign is a maritime flag featuring a dark blue field with the Union Jack in the canton, traditionally used by certain British government vessels and authorized organizations.
• C. British Red Ensign
  The British Red Ensign is a historic maritime flag of England and later Great Britain, featuring a red field with the Union Jack in the canton, traditionally flown by British merchant and civilian vessels.
• D. Flags of the United Kingdom
  Flags of the United Kingdom are the various national and official ensigns and banners representing the UK and its constituent countries, most prominently the Union Jack.
• E. White Ensign
  The White Ensign is the distinctive white naval flag with a red St George’s Cross and Union Flag in the canton flown by commissioned warships and shore establishments of the Royal Navy.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.