Triple

Target entity: Siege of Port Hudson
Context triple: [Army of the Gulf, participatedIn, Siege of Port Hudson]

• A. Battle of Port Hudson chosen
  The Battle of Port Hudson was a major American Civil War siege in Louisiana where Union forces sought to secure control of the Mississippi River by capturing a key Confederate stronghold.
• B. Siege of Vicksburg
  The Siege of Vicksburg was a pivotal 1863 Union campaign in the American Civil War that secured control of the Mississippi River and split the Confederacy in two.
• C. Capture of New Orleans
  The Capture of New Orleans was a pivotal 1862 Union naval and land operation during the American Civil War that seized the Confederacy’s largest city and key Gulf Coast port, dealing a major strategic and economic blow to the South.
• D. Siege of Fort St. Philip
  The Siege of Fort St. Philip was a key 1756 French and Spanish assault on the British-held fortress at Mahón on Menorca, whose capture marked an early and significant victory in the Seven Years' War.
• E. Port Hudson campaign
  The Port Hudson campaign was a major American Civil War operation in Louisiana in 1863, in which Union forces besieged and ultimately captured the Confederate stronghold of Port Hudson to gain control of the Mississippi River.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.