What is "Vector Data"?

Vector data is a type of data representation in geographic information systems (GIS) that uses points, lines, and polygons to depict spatial features and relationships. This format allows for the detailed representation of real-world entities and phenomena.

Points are used to mark specific locations, lines represent linear features such as roads or rivers, and polygons are used to depict areas such as lakes, forests, or administrative boundaries. Since vector data is defined using coordinate pairs, it provides precise representations of geographic features, which is essential for analysis, mapping, and modeling.

In contrast, other data types like raster data consist of grid cells and are generally used for continuous data, such as satellite images or elevation models. Options that focus solely on points or the representation of raster images do not fully encompass the comprehensive nature of vector data, which includes the ability to represent more complex shapes and structures in geography. Thus, the definition provided in the correct answer accurately captures the breadth and functionality of vector data in GIS applications.