Triple

Target entity: Spencer Cavendish, 8th Duke of Devonshire
Context triple: [Victor Cavendish, 9th Duke of Devonshire, father, Spencer Cavendish, 8th Duke of Devonshire]

• A. Spencer Compton Cavendish, 8th Duke of Devonshire chosen
  Spencer Compton Cavendish, 8th Duke of Devonshire, was a prominent 19th-century British statesman and aristocrat who held senior political offices including Leader of the Liberal Party and later the Liberal Unionists.
• B. Victor Cavendish, 9th Duke of Devonshire
  Victor Cavendish, 9th Duke of Devonshire, was a British Conservative politician and aristocrat who served as Governor General of Canada in the early 20th century.
• C. Andrew Cavendish, 11th Duke of Devonshire
  Andrew Cavendish, 11th Duke of Devonshire, was a prominent British aristocrat and politician who modernized the Chatsworth estate and served as a senior figure in the postwar Conservative Party.
• D. William Cavendish, 7th Duke of Devonshire
  William Cavendish, 7th Duke of Devonshire was a 19th-century British aristocrat, landowner, and politician who served as Chancellor of the University of Cambridge and played a major role in the development of the spa town of Eastbourne.
• E. Edward Cavendish, 10th Duke of Devonshire
  Edward Cavendish, 10th Duke of Devonshire, was a prominent 20th-century British aristocrat and landowner who served as Lord Lieutenant of Derbyshire and held various ceremonial and public roles within the United Kingdom.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.