North American Datum of 1983

Target entity: North American Datum of 1983
Context triple: [National Spatial Reference System, historicalComponent, North American Datum of 1983]

• A. National Spatial Reference System
  The National Spatial Reference System is the official coordinate framework used in the United States to define precise locations, elevations, and boundaries for mapping, surveying, and navigation.
• B. WGS84
  WGS84 is the global geodetic reference system and standard coordinate framework used for GPS and most modern mapping applications.
• C. National Geodetic Survey
  The National Geodetic Survey is the U.S. federal agency responsible for defining, maintaining, and providing access to the national coordinate system used for mapping, charting, and navigation.
• D. International Terrestrial Reference System
  The International Terrestrial Reference System is a globally standardized, Earth-centered coordinate framework used for precise positioning, navigation, and geodetic measurements.
• E. San Bernardino meridian
  The San Bernardino meridian is a principal survey meridian used as a reference line for land surveying and mapping in Southern California and parts of Nevada.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: North American Datum of 1983
Target entity description: North American Datum of 1983 is a geodetic reference system used across North America to define precise locations on the Earth's surface for mapping, surveying, and navigation.

• A. National Spatial Reference System
  The National Spatial Reference System is the official coordinate framework used in the United States to define precise locations, elevations, and boundaries for mapping, surveying, and navigation.
• B. WGS84
  WGS84 is the global geodetic reference system and standard coordinate framework used for GPS and most modern mapping applications.
• C. National Geodetic Survey
  The National Geodetic Survey is the U.S. federal agency responsible for defining, maintaining, and providing access to the national coordinate system used for mapping, charting, and navigation.
• D. International Terrestrial Reference System
  The International Terrestrial Reference System is a globally standardized, Earth-centered coordinate framework used for precise positioning, navigation, and geodetic measurements.
• E. San Bernardino meridian
  The San Bernardino meridian is a principal survey meridian used as a reference line for land surveying and mapping in Southern California and parts of Nevada.
• F. None of above. chosen