Triple

Target entity: New Mexico Territory
Context triple: [Captain Joseph Calloway Lea, placeOfActivity, New Mexico Territory]

• A. New Mexico Territory chosen
  New Mexico Territory was a large U.S. territorial jurisdiction in the American Southwest, organized in 1850 and encompassing present-day New Mexico and Arizona as well as parts of surrounding states before later being subdivided into smaller territories and states.
• B. Nevada Territory
  Nevada Territory was a 19th-century organized incorporated territory of the United States that preceded the state of Nevada, known for its mining boom and role in the American West.
• C. Arizona Territory
  The Arizona Territory was a historical U.S. territorial jurisdiction in the American Southwest that existed from the mid-19th century until it achieved statehood as Arizona in 1912.
• D. Territory of Colorado
  The Territory of Colorado was a 19th-century organized incorporated territory of the United States that preceded the state of Colorado, encompassing much of the central Rocky Mountain region.
• E. Dakota Territory
  Dakota Territory was a 19th-century organized incorporated territory of the United States that once encompassed the areas that later became North Dakota, South Dakota, and parts of neighboring states.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.