What occurs to attribute tables when two polygons are overlaid?

• A. They are discarded completely
• B. They generate distinct new tables
• C. The new object has one attribute table containing attributes from both inputs
• D. Attributes are simplified and summarized

Answer: (C)

When two polygons are overlaid in a GIS operation, the result is a new geometric entity that can carry an attribute table reflecting the combined attributes of the original polygons. This new object not only retains the spatial characteristics of the inputs but also creates an integrated attribute table.

In this table, attributes from both original polygons are included, facilitating a comprehensive analysis of the intersected area. This removal of separate tables streamlines data management and ensures that all pertinent information is accessible in a single location, which is essential for further spatial analysis, attribute querying, and visualization.

This process helps users understand the relationship between the original datasets and provides insights that may not be observable when analyzing each polygon separately. On the contrary, other listed options do not accurately represent the mechanics of attribute table handling during overlay operations in GIS.