Ziegler polar expeditions

Target entity: Ziegler polar expeditions
Context triple: [Heroic Age of Antarctic and Arctic Exploration, includesEvent, Ziegler polar expeditions]

• A. 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.
• B. Austro-Hungarian North Pole expedition
  The Austro-Hungarian North Pole expedition was a 19th-century polar exploration mission (1872–1874) led by Julius Payer and Karl Weyprecht that significantly advanced Arctic geographic and scientific knowledge.
• C. Amundsen–Ellsworth–Nobile expedition
  The Amundsen–Ellsworth–Nobile expedition was a 1926 polar venture led by Roald Amundsen, Lincoln Ellsworth, and Umberto Nobile that achieved the first verified crossing of the Arctic Ocean by airship.
• D. Byrd Antarctic Expedition I
  Byrd Antarctic Expedition I was a pioneering late-1920s American scientific and exploratory mission to Antarctica led by aviator and polar explorer Richard E. Byrd, notable for its extensive use of aircraft and radio.
• E. Roald Amundsen’s South Pole expedition 1910–1912
  Roald Amundsen’s South Pole expedition 1910–1912 was the pioneering Norwegian Antarctic journey that first reached the geographic South Pole, marking a major milestone in polar exploration.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Ziegler polar expeditions
Target entity description: The Ziegler polar expeditions were early 20th-century American-financed voyages to the Arctic aimed at exploring and attempting to reach the North Pole.

• A. 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.
• B. Austro-Hungarian North Pole expedition
  The Austro-Hungarian North Pole expedition was a 19th-century polar exploration mission (1872–1874) led by Julius Payer and Karl Weyprecht that significantly advanced Arctic geographic and scientific knowledge.
• C. Amundsen–Ellsworth–Nobile expedition
  The Amundsen–Ellsworth–Nobile expedition was a 1926 polar venture led by Roald Amundsen, Lincoln Ellsworth, and Umberto Nobile that achieved the first verified crossing of the Arctic Ocean by airship.
• D. Byrd Antarctic Expedition I
  Byrd Antarctic Expedition I was a pioneering late-1920s American scientific and exploratory mission to Antarctica led by aviator and polar explorer Richard E. Byrd, notable for its extensive use of aircraft and radio.
• E. Roald Amundsen’s South Pole expedition 1910–1912
  Roald Amundsen’s South Pole expedition 1910–1912 was the pioneering Norwegian Antarctic journey that first reached the geographic South Pole, marking a major milestone in polar exploration.
• F. None of above. chosen