Triple

Target entity: Ernest Shackleton’s Imperial Trans-Antarctic Expedition
Context triple: [Grytviken Cemetery, associatedWith, Ernest Shackleton’s Imperial Trans-Antarctic Expedition]

• A. Shackleton–Rowett Expedition
  The Shackleton–Rowett Expedition was Sir Ernest Shackleton’s final Antarctic voyage (1921–1922), a largely scientific and exploratory mission that ended with his death in South Georgia.
• B. Imperial Trans-Antarctic Expedition chosen
  The Imperial Trans-Antarctic Expedition was Sir Ernest Shackleton’s famed 1914–1917 Antarctic venture, best known for the dramatic survival and rescue of its crew after their ship Endurance was trapped and crushed by pack ice.
• C. Commonwealth Trans-Antarctic Expedition
  The Commonwealth Trans-Antarctic Expedition was a 1955–1958 British-led mission that achieved the first overland crossing of Antarctica via the South Pole.
• D. British Antarctic Expedition
  The British Antarctic Expedition was an early 20th-century polar exploration led by Robert Falcon Scott that sought to reach the South Pole and conduct extensive scientific research in Antarctica.
• E. Russian Antarctic Expedition
  The Russian Antarctic Expedition is Russia’s national polar research program responsible for conducting scientific exploration and maintaining research stations across Antarctica.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.