Which coordinate system is identified as WGS84 Geographic Coordinate System?

The WGS84 Geographic Coordinate System (GCS) is a global reference system that uses latitude and longitude to define locations on the Earth's surface. It was developed by the National Imagery and Mapping Agency (NIMA) and has become the standard for global positioning systems (GPS) and many other applications that require a coordinate reference frame.

WGS84 is recognized for its accuracy and wide acceptance, particularly for applications in mapping and navigation. It is built on an ellipsoidal model of the Earth, which provides a realistic representation of the planet's shape. This system is directly referenced as EPSG:4326 in many GIS applications, which aligns with option B.

Other coordinate systems mentioned, like NAD83, EPSG:4267, and NAD27, while also widely used, are based on different geodetic datums. NAD83 is more commonly used in North America and is generally seen as an improvement upon NAD27. EPSG:4267 corresponds to the NAD83 coordinate system, emphasizing its North American focus. Understanding these distinctions is key when working with spatial data, as transforms between different coordinate systems may be necessary for accurate data integration and analysis.